研究者紹介システム

大塚 啓二郎
オオツカ ケイジロウ
社会システムイノベーションセンター
教授
商学・経済学関係
Last Updated :2020/09/03

研究者情報

所属

  • 【主配置】

    社会システムイノベーションセンター
  • 【配置】

    経済学部 経済学科, 大学院経済学研究科 経済学専攻

学位

  • Ph.D.(経済学), シカゴ大学

ジャンル

  • 経済・金融 / その他

コメントテーマ

  • 経済発展
  • 技術移転
  • アジア・アフリカの農業・製造業
  • 緑の革命

研究ニュース

研究活動

研究キーワード

  • 土地制度
  • 緑の革命
  • 産業集積
  • 海外直接投資
  • Poverty Reduction
  • Industrial Cluster
  • Land Tenure Institutions

研究分野

  • 人文・社会 / 経済政策 / 開発経済学
  • 人文・社会 / 経済政策 / 開発経済学

委員歴

  • 2019年03月 - 現在, Japanese Association for Development Economics, President
  • 2019年03月 - 現在, 開発経済学会, 会長
  • 2013年03月 - 現在, Asian Development Review, 編集委員
  • 2013年01月 - 現在, Agricultural Economics, 編集委員
  • 2015年01月 - 2018年01月, Global Food Security, 編集者
  • 2003年10月 - 2016年03月, Economic Development and Cultural Change, 編集委員
  • 2009年08月 - 2012年08月, International Association of Agricultural Economists, President
  • 2009年08月 - 2012年08月, 国際農業経済学会, 会長

受賞

  • 2018年12月 日本学士院, 学士院会員

    大塚 啓二郎

  • 2010年04月 日本国政府, 紫綬褒章, 学術研究業績

    大塚 啓二郎

    日本国

    その他の賞

  • 2004年 日経・経済図書文化賞

    大塚 啓二郎

  • 2004年 NIRA大来政策研究賞

    大塚 啓二郎

  • 1999年 日本農業経済学会誌賞

    大塚 啓二郎

  • 1995年 日経・経済図書文化賞

    大塚 啓二郎

  • 1993年 アメリカ農業経済学会賞

    大塚 啓二郎

論文

  • Technology Adoption, Impact, and Extension in Developing Country Agriculture: A Review of the Recent Literature

    髙橋 和志, 村岡 里恵, 大塚 啓二郎

    2020年01月, Agricultural Economics, 51 (1), 31 - 45, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Learning from Experts and Peer Farmers about Rice Production: Experimental Evidence from Cote d’Ivoire

    髙橋 和志, 真野 裕吉, 大塚 啓二郎

    2019年10月, World Development, 122, 157 - 169, 英語

    [査読有り]

    研究論文(学術雑誌)

  • An Inquiry into the Heterogeneous Outcomes of International Migration: Evidence from Rural Households in Bangladesh

    吉川 愛子, 松本 朋哉, 大塚 啓二郎

    2019年08月, Journal of Development Studies, 55 (10), 2016 - 2028, 英語

    研究論文(学術雑誌)

  • Has ODA Contributed to Growth? An Assessment of the Impact of Japanese ODA

    樅田 泰明, 松本 朋哉, 大塚 啓二郎

    2019年03月, Japan and the World Economy, 49 (C), 161 - 175, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Maki Nakajima, Yoko Kijima, Keijiro Otsuka

    Having achieved remarkable improvements in basic education, India now faces the issues of low learning levels, and a high dropout rate. This paper examines whether the learning crisis is responsible for students dropping out of school using unique panel data that followed nearly 1000 Indian children from 2002 to 2013. We discover that literacy skills acquired by the age of 12 have long-lasting, positive effects on subsequent school progression. We also find that local job opportunities influence school progression. Further, we find that time spent on household chores negatively affects literacy acquirement during primary school years.

    Elsevier Ltd, 2018年09月01日, International Journal of Educational Development, 62 (C), 245 - 253, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Tetsushi Sonobe

    More often than not, manufacturing industries are clustered in small areas in developing economies of Asia and sub-Saharan Africa (SSA). While agglomeration economies arising from low transaction costs are a clear advantage of industrial clusters, a drawback is the ease of imitation, which leads to the gap between social and private benefits of innovation. An important observation is that multifaceted innovation, consisting of the quality improvement of products, improved internal management, and the introduction of new marketing systems, takes place in many industrial clusters in Asia, but such innovation seldom occurs in SSA. This article attributes this to greater endowment of entrepreneurial human capital, and increased possibility of learning advanced technologies and management methods from neighboring countries in Asia than in SSA. This article also discusses evidence suggesting that multifaceted innovation can be stimulated by offering management training to entrepreneurs in SSA.

    Blackwell Publishing Ltd, 2018年06月01日, Developing Economies, 56 (2), 104 - 116, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Yuko Nakano, Yuki Tanaka, Keijiro Otsuka

    Agricultural development is indispensable for poverty reduction and food security in sub-Saharan Africa (SSA). This study investigates the impact of rice production training in a modified version of the System of Rice Intensification (SRI) on the performance of small-scale rice farmers in a rainfed area of Tanzania. Utilizing the plot level variation, we employ propensity score matching (PSM) to assess the impact of training on technology adoption, productivity, and profitability. We also estimate a difference-in-differences model with plot fixed effects using recall panel data covering the periods before and after training. We found that trainees achieved an average paddy yield of 4.7 tons per hectare and rice profit of 191.5 USD per hectare on the plots where new technologies were adopted, which is higher by about 1.3–1.8 tons and 119–137 USD per hectare than on the other plots. Our study suggests the high potential of transforming favorable rainfed rice growing areas in SSA so as to achieve a rice Green Revolution through training in modern input use and improved agronomic practices.

    Blackwell Publishing Ltd, 2018年03月01日, Agricultural Economics (United Kingdom), 49 (2), 193 - 202, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Maki Nakajima, Keijiro Otsuka, Takashi Yamano

    This study examines the effects of wealth, human capital, and social group on the occupational choice and income of farm households, to gain an understanding of the mechanism underlying the recently increasing income diversification in rural eastern India. The results show that wealth and human capital have a positive impact on the choice of high-return jobs, and low caste workers are more likely to work in casual, low-paying jobs, partly due to their dependence on personal networks in finding jobs. Notably, no clear evidence of association between social group and income is found.

    Routledge, 2018年01月02日, Journal of Development Studies, 54 (1), 111 - 132, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Middle-Income Traps in East Asia: An Inquiry into Causes for Slowdown in Income Growth.

    大塚 啓二郎, 樋口 裕城, 園部 哲史

    2017年12月, China Economic Review, 46 (S), S3 - S16, 英語

    [査読有り]

    研究論文(学術雑誌)

  • A Green Revolution for Sub-Saharan Africa: Past Failures and Future Prospects.

    大塚 啓二郎, 村岡 里恵

    2017年08月, Journal of African Economies, 26 (S1), i73 - i98, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Francis Mwesigye, Tomoya Matsumoto, Keijiro Otsuka

    This study examines the evolutionary process of land tenure systems in Uganda from communal to private ownership with a special attention to the role of rural-to-rural migration as a key driving force. By tracing migration patterns using unique longitudinal household survey data containing detailed information on land tenure and migration history, we found that immigrant-dominated communities have a higher incidence of private land ownership even after controlling for population density and market access. We also found that land markets are more active in immigrant-dominated communities and that private land ownership results in higher agricultural productivity. (C) 2017 Elsevier Ltd. All rights reserved.

    ELSEVIER SCI LTD, 2017年06月, LAND USE POLICY, 65, 1 - 14, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Comments on ‘Disasters, Household Decisions, and Insurance Mechanisms: A Review of Evidence and a Case Study from a Developing Country in Asia.

    大塚 啓二郎

    2017年01月, Asian Economic Policy Review, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Yanyan Liu, Futoshi Yamauchi

    When the wage rate is low, a labour-intensive production method is chosen. Since it is costly to monitor hired labourers in agriculture, small-scale farms dependent on family labour are more efficient than large farms relying on hired labour. This leads to the inverse relationship between farm size and productivity, if land markets do not reallocate land. When the wage rate increases, labour-saving and machine-using production methods become efficient. If machinery and land are complementary and machines are indivisible to some extent, large-scale mechanized farms become more efficient, which tends to weaken the inverse farm size-productivity relationship. This article argues that if small-scale farms continue to dominate in the face of the increasing wage rate in Asia, many countries in this region will lose their comparative advantage in agriculture. (C) 2016 Elsevier B.V. All rights reserved.

    ELSEVIER SCIENCE BV, 2016年12月, GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT, 11, 5 - 10, 英語

    [査読有り][招待有り]

    研究論文(学術雑誌)

  • Xiaobing Wang, Futoshi Yamauchi, Keijiro Otsuka, Jikun Huang

    This paper aims to examine the dynamics of land transactions, machine investments, and the demand for machine services using farm panel data from China. Recently, China's agriculture has experienced a large expansion of machine rentals and machine services provided by specialized agents, which has contributed to mechanization of agricultural production. On the other hand, the empirical results show that an increase in non-agricultural wage rates leads to expansion of self-cultivated land size. A rise in the proportion of non-agricultural income or the migration rate also increases the size of self-cultivated land. Interestingly, however, relatively educated farm households decrease the size of self-cultivated land, which suggests that relatively less educated farmers tend to specialize in farming. The demand for machine services has also increased if agricultural wage and migration rate increased over time, especially among relatively large farms. The results on crop income also support complementarities between rented-in land and machine services (demanded), which implies that scale economies are arising in Chinese agriculture with mechanization and active land rental markets. (C) 2016 The Authors. Published by Elsevier Ltd.

    PERGAMON-ELSEVIER SCIENCE LTD, 2016年10月, WORLD DEVELOPMENT, 86 (10), 30 - 45, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Donald F. Larson, Rie Muraoka, Keijiro Otsuka

    Improving the productivity of smallholder farms in Sub-Saharan Africa offers the best chance to reduce poverty among this generation of rural poor by building on the few resources farming households already own. It is also the best and shortest path to meet rising food needs. Using examples from farmers' maize and rice fields, comparisons with Asia, and an extensive literature review, we explain why the set of technologies promoted to date have produced localized successes rather than transformational change. We also examine the limitations of alternative policies that are not centered on small farms. We give indicative examples of how resource-management technologies can supplement seed-fertilizer technologies to speed an African Green Revolution. (C) 2016 Elsevier B.V. All rights reserved.

    ELSEVIER SCIENCE BV, 2016年09月, GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT, 10 (10), 39 - 51, 英語

    [査読有り][招待有り]

    研究論文(学術雑誌)

  • 産地・産業集積の発展-経済史と開発経済学の融合

    橋野 知子, 大塚 啓二郞

    2016年08月, 国民経済雑誌, 214 (2), 47 - 57, 日本語

    研究論文(学術雑誌)

  • 大塚 啓二郎, 高橋 遼

    2016年08月, Land Economics, 92 (3), 450 - 67, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Yanyan Liu, Futoshi Yamauchi

    Farms throughout Asia are predominantly small. By nature, small farms use labour-intensive production methods. The question arises as to the viability of small farms in the face of the rapidly increasing wage rate in most Asian countries. There is also indication that the production efficiency of small farms has declined relative to large farms in many Asian economies, indicating the increasing disadvantage of small farms in Asia. Therefore, this study argues that unless new policy measures are taken to expand farm size, Asia as a whole is likely to lose comparative advantage in agriculture and become an importer of food grains in the future.

    WILEY-BLACKWELL, 2016年05月, DEVELOPMENT POLICY REVIEW, 34 (3), 441 - 461, 英語

    [査読有り][招待有り]

    研究論文(学術雑誌)

  • Timothy N. Njeru, Yukichi Mano, Keijiro Otsuka

    This study explores the role of access to credit in improving rice production in Sub-Saharan Africa using the case of rice farmers in the large-scale Mwea irrigation scheme in Kenya. Using household level survey data, we find that the use of fertiliser and paddy yield per hectare are not significantly different among borrowers from the cooperative society, borrowers from rice traders and non-borrowers. However, borrowers from rice traders receive lower incomes and profits compared with non-borrowers largely due to the higher interest charged. Considering that such farmers who borrow from rice traders are generally poorer in financial, physical, and human capital and would have even made lower income and profit without rice trader credit, we suggest policies to facilitate further development of credit markets for both efficiency and equity of rice production in Mwea.

    OXFORD UNIV PRESS, 2016年03月, JOURNAL OF AFRICAN ECONOMIES, 25 (2), 300 - 321, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Yuko Nakano, Kazushi Takahashi

    Contract farming (CF) has long been practiced but is becoming increasingly common in both developed and developing countries with the heightened interest of consumers in food safety and quality. Under CF, farmers and buyers make advance agreements on volume, quality, time of delivery, use of inputs, and price or pricing formula. This article critically reviews the literature on CF to assess how it contributes to improving production efficiency and income of farmers in general and of small-scale farmers in particular. Although our review focuses on literature in developing countries because of its predominance, we refer to literature in developed countries (primarily the United States) to gain a deeper understanding of the impacts of CF. We find that although CF contributes to the improvement of farmers' income by introducing new crops and production methods, there is room for strengthening its effects on poverty reduction through policy.

    ANNUAL REVIEWS, 2016年, ANNUAL REVIEW OF RESOURCE ECONOMICS, VOL 8, 8 (8), 353 - 376, 英語

    [査読有り][招待有り]

    研究論文(学術雑誌)

  • Narayan Raj Poudel, Nobuhiko Fuwa, Keijiro Otsuka

    A growing literature documents the positive impact of community management on non-timber forest conservation but not on the condition of timber forests, which require higher management intensity than do non-timber forests. Using ground-level data of the age composition of trees and the management activities of timber forests and applying a rigorous econometric technique to deal with the endogeneity of handing over forest use rights to the community, we find that a longer period of community management is associated with a higher density of pole-size trees, indicating that community management facilitates the rehabilitation of timber forests. We also find that population pressure leads to deforestation under state management but encourages forest management under community management.

    CAMBRIDGE UNIV PRESS, 2015年04月, ENVIRONMENT AND DEVELOPMENT ECONOMICS, 20 (2), 259 - 281, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Ryo Takahashi, Ridish Pokharel

    There is a variety of forest management institutions ranging from state management to community and private management. This article attempts to identify the conditions under which one institution outperforms the others in the efficiency of forest management based on a review of the literature, empirical evidence on the dominant forest management institutions, and theoretical arguments. In conclusion, we argue that the community management system performs best for nontimber forests, whereas a mixed management system, in which forest protection is carried out communally and tree management is carried out individually, is likely to work best for timber forests.

    TAYLOR & FRANCIS INC, 2015年, JOURNAL OF SUSTAINABLE FORESTRY, 34 (3), 300 - 314, 英語

    [査読有り]

    研究論文(学術雑誌)

  • How Promising Is the Rice Green Revolution in Sub-Saharan Africa? Evidence from Case Studies in Mozambique, Tanzania, Uganda, and Ghana

    大塚 啓二郎

    2015年, World Food Policy, 2 (1), 36 - 51, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Cluster-Based MSE Development: The Role of Kaizen Training

    園部 哲史, 大塚 啓二郎

    2015年, Pakistan Development Review, 54 (4), 609 - 626, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Poor Parents, Rich Children: The Role of Schooling, Nonfarm Work, and Migration in the Rural Philippines

    Jonna P. Estudillo, Yukichi Mano, Yasuyuki Sawada, 大塚 啓二郎

    2014年12月, Philippine Review of Economics, 51 (2), 21 - 46, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Stein T. Holden, Keijiro Otsuka

    This article reviews the past and potential future roles of land tenure reforms and land markets in Sub-Saharan Africa (SSA) as responses to population growth in the process of land use intensification and livelihood transformation. The farm size distribution and the existence of an inverse relationship (IR) between farm size and land productivity in SSA and the implications of this relationship for efficiency and equity are investigated. More secure property rights and removal of restrictions on land markets have the potential to create both efficiency and equity benefits, but there are high risks of elite capture of large land areas with inefficient and inequitable outcomes. This situation is the case not only in land-abundant areas but also in urban and pen-urban areas where increasingly larger proportions of people will make their living. Increasing population pressure in densely populated rural areas contributes to more rapid rural-urban migration, and creating alternative livelihood opportunities for the migrating youth population is essential to achieving economic development with social stability. (C) 2014 Elsevier Ltd. All rights reserved.

    ELSEVIER SCI LTD, 2014年10月, FOOD POLICY, 48 (1), 88 - 97, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Millicent deGraft-Johnson, Aya Suzuki, Takeshi Sakurai, Keijiro Otsuka

    This article investigates the impact of technical intervention on the adoption of a set of improved rice production technologies, as well as on productivity and profit for smallholders in rainfed lowland areas in Northern Ghana. The key finding is that productivity and profit are significantly enhanced when modern varieties (MVs) and chemical fertilizer are adopted, coupled with water control techniques. This is essentially the transfer of the Asian Green Revolution to sub-Saharan Africa. Such transfer, however, is not truly successful unless information about the use of MVs and fertilizer is directly disseminated by extension activities.

    WILEY-BLACKWELL, 2014年09月, AGRICULTURAL ECONOMICS, 45 (5), 555 - 570, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Donald F. Larson, Keijiro Otsuka, Tomoya Matsumoto, Talip Kilic

    In Africa, most development strategies include efforts to improve the productivity of staple crops grown on smallholder farms. An underlying premise is that small farms are productive in the African context and that smallholders do not forgo economies of scale-a premise supported by the often observed phenomenon that staple cereal yields decline as the scale of production increases. This article explores a research design conundrum that encourages researchers who study the relationship between productivity and scale to use surveys with a narrow geographic reach in order to produce more reliable results, even though results are better suited for policy decisions when they are based on data that are broadly representative. Using a model of endogenous technology choice, we explore the relationship between maize yields and scale using alternative data. Since rich descriptions of the decision environments that farmers face are needed to identify the applied technologies that generate the data, improvements in the location specificity of the data should reduce the likelihood of identification errors and biased estimates. However, our analysis finds that the inverse-productivity hypothesis holds up well across a broad platform of data, despite obvious shortcomings with some components. It also finds surprising consistency in the estimated scale elasticities.

    WILEY-BLACKWELL, 2014年05月, AGRICULTURAL ECONOMICS, 45 (3), 355 - 367, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Differences in Management Practices and Productivity in Micro and Small Enterprises in Industrial Clusters

    園部 哲史, 樋口 裕城, 大塚 啓二郎

    2014年05月, Journal of International Commerce, Economics, and Politics, 5 (2), 1 - 23, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Nandika S. Kumanayake, Jonna P. Estudillo, Keijiro Otsuka

    Comparing dynamic changes in household income and poverty among urban, rural, and estate sectors in Sri Lanka from 1990 to 2006, this study finds that a shift of household income away from farm to nonfarm sources is accompanied by a significant improvement in household income and reduction in poverty, particularly in the rural sector. Major contributing factors are the rise in returns to labor, in general, and educated labor, in particular, due to the development of the nonfarm labor market. Persistently low income among estate households can be explained primarily by the limited availability of nonfarm employment opportunities and the low education levels of working members.

    WILEY-BLACKWELL, 2014年03月, DEVELOPING ECONOMIES, 52 (1), 26 - 51, 英語

    [査読有り]

    研究論文(学術雑誌)

  • いかにして英文雑誌に論文を掲載するか

    大塚 啓二郎

    2014年, 農業経済研究, 86 (2), 179 - 183, 日本語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka

    I would like to argue in this article that in the process of economic development in land-poor countries in Asia, agriculture faces three distinctly different problems: food insecurity, sectoral income inequality, and the declining food self-sufficiency associated with the declining comparative advantage in agriculture at the high-income stage. Massive imports of food grains to Asia, if they occur, will aggravate the world food shortage, which will have significant implications for the poverty incidence in the world. I argue that in order to avoid such a tragedy, Asia should expand farm size to reduce labor cost by adopting large-scale mechanization, sub-Saharan Africa should realize a green revolution in grain production, and Latin America should further expand its grain production capacity.

    WILEY, 2013年11月, AGRICULTURAL ECONOMICS, 44 (S1), 7 - 18, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Yanyan Liu, Futoshi Yamauchi

    Country-level panel data was used to analyze the dynamics of changes in productivity, labor, and machine use (and their substitutability) by explicitly focusing on the role of farm size. Machine use, labor use, and yield was estimated on agricultural production to test the hypotheses formulated by the theoretical model. Then the self-sufficiency ratio (SSR) of cereals was estimated as a function of factors on the demand and supply sides. For the three equations on agricultural production, the dependent variables are machine use per hectare, labor input per hectare, and yield per hectare, respectively. The findings from macro-panel data imply that in the near future, Asian agriculture that traditionally used family labor intensively on small farms can face a challenge in maintaining domestic production. Given the huge size of consumer demands in the region, the future path of Asian agriculture could be a significant constraint on the global food supply-demand balance.

    2013年10月, American Journal of Agricultural Economics, 95 (5), 1252 - 1258, 英語

    [査読有り]

    研究論文(学術雑誌)

  • The Development of Agricultural Markets in sub-Saharan Africa: The Case of Rice in Uganda

    Yoko Kijima, 大塚 啓二郎, Koichi Futakuchi

    2013年10月, African Journal of Agricultural and Resource Economics, 8 (4), 253 - 264, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 橋野 知子, 大塚 啓二郎

    The Kiryu silk weaving district, located 200 kilometres north of Tokyo, has been one of the most advanced silk weaving districts since the Tokugawa period (1603-1868). In the 1870s, it was a pioneer in the export of silk products from Japan and the leading producer of traditional Japanese kimono and obi (sash belts) for domestic markets. This study finds that the developmental process of the Kiryu district from 1895 to 1930 can be divided into at least two phases, that is, one of gradual growth based on an inter-firm division of labour using hand looms and one of dynamic development based on the factory system using power looms. Weaving manufacturers-cum-contractors pioneered gradual growth by sub-contracting with rural village out-weavers and with a number of specialized, supporting firms in Kiryu town, and grew faster than factory production systems. New joint-stock firms played the role of genuine entrepreneurs by introducing power looms, thereby realizing significant economies of scale. During this new phase, the weaving manufacturers-cum-contractors survived and also introduced new production systems.

    WILEY-BLACKWELL, 2013年08月, Economic History Review, 66 (3), 785 - 804, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Labor Markets, Occupational Choice, and Rural Poverty in Four Asian Countries

    Jonna P. Estudillo, Tomoya Matsumoto, Hayat Chowdhury, Zia Uddin, Nandika S, Kumanayake, 大塚 啓二郎

    2013年06月, Philippine Review of Economics, 50 (1), 23 - 44, 英語

    [査読有り]

    研究論文(学術雑誌)

  • The Changing Effects of Agro-Climate on Cereal Crop Yields during the Green Revolution in India, 1972 to 2002

    津坂 卓志, 大塚 啓二郎

    2013年04月, Journal of Sustainable Development, 6 (4), 11 - 36, 英語

    [査読有り]

    研究論文(学術雑誌)

  • The Changes in the Effects of Temperature and Rainfall on Cereal Crop Yields in Sub-Saharan Africa: A Country Level Panel Data Study, 1989 to 2004

    津坂 卓志, 大塚 啓二郎

    2013年, Environmental Economics, 4 (2), 70 - 80, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Kaliappa Kalirajan, Keijiro Otsuka

    This paper attempts to quantify the impact of fiscal decentralization in India on its social infrastructure and on rural development. Overall, the results in this paper indicate that Government of India within a federal framework has been fostering development equitably across its states, particularly through health and education expenditures aimed at improving human capital development. In this context, the importance of the two tier centre-states decentralization should be noted. However, the third tier of local governance, particularly the state-rural local bodies decentralization has been dismal and has not achieved significant results across states, which warrant the attention of the central and state governments. (C) 2012 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, 2012年08月, WORLD DEVELOPMENT, 40 (8), 1511 - 1521, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Yoko Kijima, Noriyuki Ito, 大塚 啓二郎

    2012年08月, World Development, 40 (8), 1619 - 1633, 英語

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    研究論文(学術雑誌)

  • Economic Transformation of Agriculture in Asia: Past Performance and Future Prospects

    大塚 啓二郎

    2012年06月, Asian Journal of Agriculture and Development, 9 (1), 1 - 19, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Charity Gay Ramos, Jonna Estudillo, Yasuyuki Sawada, Keijiro Otsuka

    This research explores the changing structure of the rural economy in the Philippines from 1988 to 2006. We found that the expansion and upgrade of infrastructure such as electricity and roads and investment in secondary and tertiary education are important factors that induced the economic transformation of the rural economy. The importance of higher education as an entry requirement to the nonfarm labor market has declined over time, indicating that the rural nonfarm sector has been increasingly providing employment opportunities to the unskilled and the uneducated, who form the bulk of the rural poor.

    ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2012年, JOURNAL OF DEVELOPMENT STUDIES, 48 (11), 1629 - 1648, 英語

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    研究論文(学術雑誌)

  • 中野 優子, 大塚 啓二郎

    2011年10月, Environment and Development Economics, 16 (5), 521 - 551, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Tetsushi Sonobe, John E. Akoten, Keijiro Otsuka

    Small and informal enterprises are preponderant in Africa's manufacturing sector. Their growth is negligibly low except when young and small, but little is known beyond this. This paper reports the results of our field study of a metalworking cluster in Nairobi. As competition was intensified by the entry of new enterprises, the education level of entrepreneurs became important in determining enterprise performance, which is reminiscent of East Asian experiences. Recently, some enterprises have left for formal industrial areas partly because their original sites have become too congested for them to grow and partly because being formal facilitates marketing and further growth.

    SPRINGER, 2011年04月, SMALL BUSINESS ECONOMICS, 36 (3), 323 - 335, 英語

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    研究論文(学術雑誌)

  • Shingo Kimura, Keijiro Otsuka, Tetsushi Sonobe, Scott Rozelle

    UNIV CHICAGO PRESS, 2011年04月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 59 (3), 485 - 510, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Yoko Kijima, Keijiro Otsuka, Dick Sserunkuuma

    In Uganda, New Rice for Africa (NERICA), a high-yielding upland rice variety suitable for the African environment, was introduced to increase food security and reduce poverty in rural areas in 2002. However, more than 50% of the NERICA adopters in 2004 had abandoned it in 2006. The regression results indicate that the low profitability of NERICA relative to alternative crops in variable rainfall areas explains the massive dropout. It is also found that the profitability of NERICA production was low when farmer produced seeds were used in 2006, suggesting the weak dissemination of appropriate information on seed production to rice farmers. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, 2011年01月, WORLD DEVELOPMENT, 39 (1), 77 - 86, 英語

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    研究論文(学術雑誌)

  • The Role of Labor Markets and Human Capital in Poverty Reduction: Evidence from Asia and Africa

    Jonna P. Estudillo, Takashi Yamano, 大塚 啓二郎

    2010年, Asian Journal of Agriculture and Development, 7 (1), 23 - 40, 英語

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    研究論文(学術雑誌)

  • Vu Hoang Nam, Tetsushi Sonobe, Keijiro Otsuka

    While village industries are known to have high potential to grow, their growth process has seldom been analysed. This study explores the development process of a rapidly growing village-based garment cluster in northern Vietnam. We found that both the human capital and social capital (measured by the kinship ties with overseas Vietnamese traders) of the proprietors facilitated their innovative entry into new export markets. Furthermore, general human capital acquired by schooling and specific human capital acquired by management experience are found to have contributed to the adoption of a vertically integrated production system, which, in turn, contributed to enhanced enterprise performance.

    ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2010年, JOURNAL OF DEVELOPMENT STUDIES, 46 (2), 312 - 330, 英語

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    研究論文(学術雑誌)

  • Keijiro Otsuka, Yoko Kijima

    Asian Green Revolution is essentially technology-led and policy-supported, rather than policy-driven as is often assumed. That is, the development of semi-dwarf high-yielding varieties of rice and wheat by international agricultural research centres, such as International Rice Research Institute and International Maize and Wheat Improvement Center, induced subsequent public-sector investments in irrigation, credit programmes and national research and extension systems by increasing the rates of return to such investments. Moreover, responding to profitable opportunities created by the new technologies, both factor and product markets developed in Asia. This paper discusses what lessons sub-Saharan Africa should learn from the Asian experience, particularly in the area of technology policies.

    OXFORD UNIV PRESS, 2010年, JOURNAL OF AFRICAN ECONOMIES, 19 (Supplement 2), ii60 - ii76, 英語

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    研究論文(学術雑誌)

  • Geography and the Evolution of Rural Nonfarm Sector in the Philippines, 1988-2006

    Jonna P. Estudillo, Charity Gay Ramos, 大塚 啓二郎

    2009年12月, Philippine Review of Economics, 46 (2), 183 - 219, 英語

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    研究論文(学術雑誌)

  • Vu Hoang Nam, Tetsushi Sonobe, Keijiro Otsuka

    While village industries are known to play an important role in the development of rural areas in developing countries, little is known about village industries in transition economies. This paper inquires into the transformation process of a village industry in northern Vietnam from a traditional to a modern cluster where new iron and steel products are produced. We found that proprietors' human capital acquired by formal education and experience in marketing and management as well as their family ties are critically important for upgrading product lines and improving management, marketing, and consequently the overall performance of the village enterprises. Journal of Comparative Economics 37 (4) (2009) 568-581. Faculty of International Economics. Foreign Trade University, 91 Chua Lang, Dong Da, Ha Noi, Vietnam; Foundation for Advanced Studies on International Development, 7-22-1 Roppongi, Minato-ku, Tokyo 106-8677, Japan. (C) 2009 Association for Comparative Economic Studies. Published by Elsevier Inc. All rights reserved.

    ACADEMIC PRESS INC ELSEVIER SCIENCE, 2009年12月, JOURNAL OF COMPARATIVE ECONOMICS, 37 (4), 568 - 581, 英語

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    研究論文(学術雑誌)

  • Tetsushi Sonobe, John E. Akoten, Keijiro Otsuka

    The leather-shoe industry in Ethiopia is thriving, and in the early 2000s it managed to recover the domestic market which had once been swept by imported Chinese shoes. Using primary enterprise-level data, this paper finds that the industry has been growing not only because of a number of new entrants but also because of the growth of enterprises that have been improving product quality and developing new marketing systems. Such multifaceted improvements have been introduced by highly educated entrepreneurs, who have successfully expanded the size of their enterprises. This development pattern is similar to that commonly found in East Asia.

    WILEY-BLACKWELL, 2009年11月, REVIEW OF DEVELOPMENT ECONOMICS, 13 (4), 719 - 736, 英語

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    研究論文(学術雑誌)

  • Jonna P. Estudillo, Yasuyuki Sawada, Keijiro Otsuka

    This paper aims to explore the changing determinants of child progress through school over the last two decades using unique long-term household-panel data from four villages in the Philippines. In a regime of low income in the late 1980s, income from farming is the most important source of funds to finance child schooling. As households shift away from farm to non-farm activities and their children pursue higher education, non-farm income and revenues from pawning of land have emerged as main sources of schooling funds in the early 2000s. In this process, farm income has lost its prime importance as a determinant of schooling investments among rural households.

    ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2009年, JOURNAL OF DEVELOPMENT STUDIES, 45 (3), 391 - 411, 英語

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    研究論文(学術雑誌)

  • Kazushi Takahashi, Keijiro Otsuka

    There have been sharp increases in nonfarm income among farm households in Central Luzon for the last few decades. This study attempts to identify the effects of the increasing nonfarm income on the use of tractors and threshers and on the employment of hired labor as a substitute for family labor. We found that while the increased nonfarm income positively affects the ownership of tractors, it has no significant impact on the use of agricultural machines due presumably to the development of efficient machine rental markets. We also found that the increased nonfarm income leads to the increased use of hired labor, thereby releasing family labor to nonfarm jobs.

    WILEY-BLACKWELL PUBLISHING, INC, 2009年03月, AGRICULTURAL ECONOMICS, 40 (2), 231 - 242, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Jonna P. Estudillo, Yasuyuki Sawada, Keijiro Otsuka

    The authors examined the long-term changes in household income structure and decline in poverty in three rice-growing villages in the rural Philippines from 1985 to 2004. They found a shift of household income structure away from farm to nonfarm sources, accompanied by a decline in the incidence of poverty by about one-half. Such a decline can be explained primarily by the rise in returns to the "quantity" attributes of human capital, measured by age composition, and, secondly, by the rise in returns to the "quality" attributes, measured by the proportion of household members completing secondary and tertiary schooling. It is clear that the poor benefited from the development of the nonfarm labor market where they were able to fully utilize their only asset, that is unskilled labor.

    BLACKWELL PUBLISHING, 2008年11月, REVIEW OF DEVELOPMENT ECONOMICS, 12 (4), 877 - 890, 英語

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    研究論文(学術雑誌)

  • Yoko Kijima, Keijiro Otsuka, Dick Sserunkuuma

    Persistent food shortage and poverty in sub-Saharan Africa (SSA) are major development issues. New Rice for Africa (NERICA) was developed to boost crop yield and income of rural households in SSA. Although its high-yielding traits have become fairly well known, there is no empirical analysis of its impact on income and poverty. By taking the case of Uganda where a NERICA promoting program was initiated as one of the major poverty eradication measures, this study attempts to compare actual income with the hypothetical income without NERICA. We found that introduction of NERICA decreases poverty to a significant extent without deteriorating income distribution.

    WILEY-BLACKWELL, 2008年05月, AGRICULTURAL ECONOMICS, 38 (3), 327 - 337, 英語

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    研究論文(学術雑誌)

  • 食糧問題と地球環境の経済学

    大塚 啓二郎

    2008年, 環境経済・政策研究, 1 (1), 日本語

    [査読有り]

    研究論文(学術雑誌)

  • John Akoten, 大塚 啓二郎

    2007年08月, Journal of African Economies, 16 (4), 564 - 595, 英語

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    研究論文(学術雑誌)

  • Yue Yaguchi, Tetsushi Sonobe, Keijiro Otsuka

    This study is the first systematic attempt to test statistically the contrasting hypotheses on the emission of SO(2) and CO(2), and energy consumption in Japan and China for the last few decades. We postulate the hypotheses that local governments have incentives to internalize the local external diseconornies caused by SO(2) emissions, but not the global external diseconomies caused by CO(2) emissions. To substantiate our hypotheses, we decompose emissions of SO(2) and CO(2) into two factors: the emission factor (i.e. emission per energy use) and energy consumption. The results show that the prefectures where past energy consumption was high tend to reduce the emission factor of SO(2) significantly in Japan, while we do not find such a tendency in China. There is also evidence that neither per capita income nor past energy consumption affects the CO(2) emission factor and energy consumption significantly in both Japan and China, implying that an individual country has few incentives to reduce CO(2) emissions.

    CAMBRIDGE UNIV PRESS, 2007年06月, ENVIRONMENT AND DEVELOPMENT ECONOMICS, 12 (3), 445 - 470, 英語

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    研究論文(学術雑誌)

  • V. Balasubramanian, M. Sie, R. J. Hijmans, K. Otsuka

    Sub-Saharan Africa (SSA) faces multiple problems. The main one is improving the lives of the 30% of its population that suffers from extreme poverty and food insecurity. As more than 70% of the population lives off farming and related activities, agricultural development will have to play a major role in improving this situation. Fortunately, Africa has an abundant supply of natural resources that can support a huge expansion in food, specifically rice production. Because of strong demand, rice area expansion in SSA is larger than for any other crop. Total milled rice production increased from 2.2 million Mg in 1961 to 9.1 million-Mg in 2004. Rice imports into SSA also increased from 0.5 million Mg of milled rice in 1961 to 6.0 million Mg in 2003 and SSA currently accounts for 25% of global rice imports, at a cost of more than US$1.5 billion per year. Therefore, many African governments accord high priority to developing their local rice sector as an important component of national food security, economic growth, and poverty alleviation. The abundant supply of agroclimatically suitable wetlands (similar to 239 million ha) and water resources can support a large expansion in rice area and productivity. Currently, less than 5% of the potentially suitable wetlands are planted with rice because of various constraints. Expansion and intensification of rice cultivation in SSA will not compete with other crops in terms of land and water resources because, during the rainy season, only rice can be grown on low-lying wetlands, including inland valleys. In addition, the labor-intensive nature of rice cultivation will provide additional sources of work and income to the rural poor, especially women. Should labor shortages become acute, however, appropriate mechanization can be considered. Small farmers want to earn money from rice farming, but lack modern inputs and capital to fully exploit their rice lands as these items are limited or not available. This is where an innovative public-private partnership is desirable to support the intensification of rice farming. Rice is cultivated in four ecosystems of SSA: dryland (38% of the cultivated rice area), rainfed wetland (33%), deepwater and mangrove swamps (9%), and irrigated wetland (20%). Many abiotic stresses (drought, flood, and variable rainfall; extreme temperatures; salinity; acidity/alkalinity and poor soils, soil erosion, and high P fixation) and biotic constraints [weeds, blast, Rice yellow mottle virus (RYMV), and African rice gall midge (AfRGM)] limit rice production on the continent. The changing climate is expected to further aggravate the abiotic constraints and reduce rice yields in all ecosystems. Rice production is also restricted by many technical, management, socioeconomic, health, and policy constraints. The constraints to irrigated wetland rice in the Sahel of SSA are similar to those faced by Asian farmers in the 1960s; therefore, well-tested irrigated rice technologies from Asia and elsewhere are being introduced and adapted to local conditions to obtain fast returns on investment. For rice in irrigated wetlands in the humid and moist savanna zones, rainfed wetlands, and drylands, locally developed NERICA (new rice for Africa) varieties and production technologies are being tested in target environments. The progenies of Oryza glaberrima and O. sativa subspecies indica are better adapted to rainfed and irrigated wetlands, while those of O. glaberrima and O. sativa subspecies japonica are more suited to rainfed drylands. In addition, research is ongoing to tackle SSA-specific problems such as RYMV and AfRGM and to develop efficient crop management technologies. Currently available best management practices (integrated crop management options) for different rice ecosystems are shown in Table XV. Additional support through the provision of technical advice through revamped national R&D services; a supply of good-quality seed and other inputs, including farm credit; and enabling policy are needed for profitable and sustainable intensification of rice cultivation in SSA. It is also critical to organize preventive health measures for farmers against wetland-related diseases (malaria, bilharzia, and so on), protect certain natural wetlands (e.g., with bird sanctuaries), preserve mangrove forests in strategic coastal belts and rich peats in inlands, and use chemical inputs efficiently to minimize pollution and maintain environmental quality while intensifying rice production. Anticipatory research is needed to tackle the impacts of changing climate on rice farming and the environment. Modern information and communication technologies (ICTs) can be exploited to reach out to farmers in remote areas and to deploy technologies effectively. In addition, the development of innovative private-public partnerships and the organization of farmers into user-groups will enhance the training, farmer education, and technology adoption required for intensive commercial rice farming. (c) 2007, Elsevier Inc.

    ELSEVIER ACADEMIC PRESS INC, 2007年, ADVANCES IN AGRONOMY, VOL 94, 94 (1), 55 - 133, 英語

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    論文集(書籍)内論文

  • Tetsushi Sonobe, Dinghuan Hu, Keijiro Otsuka

    Although the inland region of China has generally been left behind in economic development compared with the coastal region. the motorcycle industry in Chongqing has recorded remarkable growth due to the meteoric rise of private enterprises over the last decade. Based on panel data of enterprises. we attempt to identify the factors behind the dynamic development of this industry. We conclude that the success of the motorcycle industry in Chongqing is attributable to a combination of positive features from the Wenzhou model in the 1990s, in which industrial development is based on clustering of private enterprises, and the Sunan model in the 1980s. in which industrial development is based on the effective use of human resources recruited from existing state-owned enterprises (SOEs). Learning by collective enterprises from SOEs in Chongqing coupled with the growth of the private enterprise sector fostered cluster-based industrial development.

    ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006年12月, JOURNAL OF COMPARATIVE ECONOMICS, 34 (4), 818 - 838, 英語

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    研究論文(学術雑誌)

  • Jonna P. Estudillo, Yasuyuki Sawada, Keijiro Otsuka

    Using a long-term household panel data set collected in three rural villages in the Philippines in 1985 and 2004, this article explores how the Green Revolution and development of the labor markets have affected household income and poverty situation. The initial rise in income associated with the Green Revolution and a stronger credit access has enabled the households to allocate funds for investing in children's schooling. With the increased integration of the rural with the urban labor market, these children are able to explore labor opportunities in the nonfarm sector that resulted in a decline in poverty by about one-half. The landless households, who are less educated, benefited, too, from the expansion of the nonfarm labor market, because of the rise in rural wages associated with the rise in demand for the unskilled labor, which is by far their most important asset.

    WILEY-BLACKWELL, 2006年11月, AGRICULTURAL ECONOMICS, 35 (3), 399 - 407, 英語

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    研究論文(学術雑誌)

  • Supattra Cherdchuchai, Keijiro Otsuka

    This article aims to examine the factors contributing to the increase in household income and the corresponding reduction in poverty in rural Thai villages from 1987 to 2004 by employing household panel data. It is found that there has been a significant structural shift of household income away from farm to nonfarm income sources, as well as a reduction in the income gap and the difference in poverty incidence between favorable and unfavorable regions. Such decreases in poverty and its regional gap have been associated with the declining importance of income accrued to farm land, measured by farm size and the availability of irrigation, and with the increasing importance of human capital, measured by the proportion of working members who have graduated from post lower secondary schools. Such findings indicate that the success in rural poverty reduction in Thailand has resulted from the development of the rural nonfarm sector coupled with the improvement of the schooling levels of the rural population.

    WILEY-BLACKWELL, 2006年11月, AGRICULTURAL ECONOMICS, 35 (3), 409 - 423, 英語

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    研究論文(学術雑誌)

  • 山野 峰, 大塚 啓二郎

    In this special issue, we present seven studies that collectively attempt to investigate the role of non-farm income in long-term and short-term poverty reduction in Asia and Africa. The first four studies out of the seven use long-term panel data over two decades in the Philippines, Thailand, Bangladesh, and India. These studies show drastic increases in non-farm income shares and corresponding declines in poverty levels over time, especially in the Philippines and Thailand. Education levels of household members and returns to education also increased significantly in these countries. The remaining three studies use cross-sectional and short-term panel data from Ethiopia, Kenya, and Uganda. These African studies show high proportions of poor households and low shares of non-farm income that are somewhat comparable to the situation in the 1980s described in the Asian studies. Without the Green Revolution that provided stable farm income and potential financial resources to invest in children' education in Asia, it is not clear if African farm households can follow the Asian examples.

    WILEY-BLACKWELL, 2006年11月, Agricultural Economics, 35 (3), 393 - 397, 英語

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    研究論文(学術雑誌)

  • 大塚 啓二郎

    2006年10月, Review of Agricultural Economics, 28 (3), 332 - 337, 英語

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    研究論文(学術雑誌)

  • Tetsushi Sonobe, Keijiro Otsuka

    While the role of clusters in promoting industrial development has been increasingly recognized in the literature, the locational choice of industrial clusters and the underlying factors affecting such a choice have seldom been analyzed, particularly in the context of industrial development in developing countries. In this article, the authors hypothesize that industrial clusters tend to be formed in suburban areas, where the division of labor among enterprises producing diverse products is intense. They obtained supportive evidence through regression analyses of changes in employment and value-added ratio using township-level census data of selected industries in Taiwan from 1976 to 1996. © 2006 The Authors Journal compilation © 2006 Blackwell Publishing Ltd.

    2006年02月, Review of Development Economics, 10 (1), 71 - 86, 英語

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    研究論文(学術雑誌)

  • 大塚 啓二郎

    In this paper I attempt to formulate an endogenous model of cluster-based industrial development, based on case studies in Japan, Taiwan, and China, where the initiation phase is followed by the quantity expansion phase through imitation and subsequently by the quality improvement phase through innovation. I argue that such a process of industrial development is supported by the development of market transactions among assemblers, parts-suppliers, and merchants, and the stimulation of innovation made possible by the benefits of industrial clusters arising from the geographical concentration of a large number of enterprises and a variety of human resources in a small geographical area.

    BLACKWELL PUBLISHING, 2006年09月, JAPANESE ECONOMIC REVIEW, 57 (3), 361 - 376, 英語

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    研究論文(学術雑誌)

  • John E. Akoten, Yasuyuki Sawada, Keijiro Otsuka

    UNIV CHICAGO PRESS, 2006年07月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 54 (4), 927 - 944, 英語

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    研究論文(学術雑誌)

  • Keijiro Otsuka, Kaliappa P. Kalirajan

    Drawing on the experiences of Asian countries. we attempt to identify the transferability of Asian Green Revolution to sub-Saharan Africa by examining whether there is a common set of factors affecting rice yields in the two regions. We have attempted to propose the strategy to realize a Green Revolution in sub-Saharan Africa based on lessons learned front the comparative Studies included in this special volume.

    BLACKWELL PUBLISHING, 2006年06月, DEVELOPING ECONOMIES, 44 (2), 107 - 122, 英語

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    研究論文(学術雑誌)

  • Aldas Janaiah, Mahabub Hossain, Keijiro Otsuka

    The present paper analyzed the long-term yield growth and total factor productivity (TFP) growth by applying Tornqvist-Theil index method for two periods, namely, 1970-85 (early Green Revolution) and 1986-2000 (late Green Revolution), for major rice-growing states of India. The yield data shows an increasing long-term growth trend throughout the Green Revolution period in irrigated states where modem variety (MV) adoption was nearly complete. However, yield advances started to slow down for intensive irrigated rice systems in the 1990s, whereas tainted ecosystems have increased during the late Green Revolution period. The domestic spillovers of MV from irrigated to rainfed states is likely to be one of the contributing factors to increased TFP growth in ranifed areas after the 1980s. This implies that the MV of rice developed for irrigated ecosystems have also benefited substantially the rainfed-dominant eastern Indian states in the long run where partial irrigation facilities such as shallow tube wells were created after the mid-1980s.

    WILEY, 2006年06月, DEVELOPING ECONOMIES, 44 (2), 190 - 207, 英語

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    研究論文(学術雑誌)

  • Jonna P. Estudillo, Keijiro Otsuka

    The purpose of the current paper is to assess the changing contributions of successive generations of modern varieties of rice (MV) to yield increase and stability and the changes in total factor productivity (TFP) in irrigated, rainfed. and upland ecosystems in the Philippines. We found that the yield increase in irrigated ecosystem has been by far the highest, which can be attributed to the diffusion of pest- and disease-resistant MV. The contribution of MV to yield increase in the rainfed ecosystem has been less significant. but much more compared with that of upland ecosystem. The rainfed and upland ecosystems have experienced an upward trend in yield. albeit slowly. because of the diffusion of improved traditional varieties and MV suitable to adverse production environments. The contribution of MV cum irrigation has accounted for approximately 50% of the growth of TFP in Central Luzon.

    BLACKWELL PUBLISHING, 2006年06月, DEVELOPING ECONOMIES, 44 (2), 123 - 148, 英語

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    研究論文(学術雑誌)

  • Yoko Kijima, Dick Sserunkuuma, Keijiro Otsuka

    A new high-yielding upland rice variety known as New Rice for Africa (NERICA) has been widely recognized as a promising technology for addressing the food shortage in sub-Saharan Africa. However, there has been no on-farm yield data to support this optimism. The present study attempts to assess the actual and potential yield of NERICA in Uganda where it has been introduced recently. We found that NERICA's yield is higher (2.5 tons) for farmers who had rice-growing experience than those who had no previous experience (1.7 tons). These findings strongly indicate that strengthening training, extension, and other supporting systems is the key to the success of the "NERICA revolution" in this country.

    BLACKWELL PUBLISHING, 2006年06月, DEVELOPING ECONOMIES, 44 (2), 252 - 267, 英語

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    研究論文(学術雑誌)

  • Food Security and the Millennium Development Goals: Towards a Strategy to Realize a Green Revolution in Sub-Saharan Africa.

    大塚 啓二郎

    2006年, Australasian Journal of Human Security, 2 (2), 25 - 40, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Is the Productivity Impact of the Green Revolution in Rice Vanishing?

    Aldas Janaiah, Mahabub Hossain, 大塚 啓二郎

    2005年12月, Economic and Political Weekly, 40 (53), 5596 - 5600, 英語

    [査読有り]

    研究論文(学術雑誌)

  • The Possibility of a Green Revolution in Sub-Saharan Africa: Evidence from Kenya.

    Takashi Yamano, 大塚 啓二郎

    2005年05月, Journal of Agricultural and Development Economics, 2 (1), 8 - 19, 英語

    [査読有り]

    研究論文(学術雑誌)

  • An Exploration of a Green Revolution in Sub-Sahara Africa

    大塚 啓二郎, Kaliappa Kalirajan

    2005年05月, Journal of Agricultural and Development Economics, 2 (1), 1 - 7, 英語

    [査読有り]

    研究論文(学術雑誌)

  • E Yamamura, T Sonobe, K Otsuka

    This study attempts to explore how an industry evolves over time based on a case study of the motorcycle industry in Japan from 1948 to 1964. Using individual firm data, we estimate the determinants of technology improvement and firm growth separately for different development phases, after controlling for the probability of firm survival. We find that the industrys rapid growth in the early phase can be explained by massive entry and the imitation of simple technologies, whereas sustained growth in later phases can be explained by innovations and subsequent imitations, as well as the exit of inefficient firms.

    SPRINGER, 2005年04月, JOURNAL OF EVOLUTIONARY ECONOMICS, 15 (2), 169 - 186, 英語

    [査読有り]

    研究論文(学術雑誌)

  • The engines of a viable agriculture: Advances in biotechnology, market accessibility and land rentals in rural China

    S Rozelle, J Huang, K Otsuka

    CONTEMPORARY CHINA CENTRE, 2005年01月, CHINA JOURNAL, 53, 81 - 111, 英語

    [査読有り]

    研究論文(学術雑誌)

  • T Sonobe, DH Hu, K Otsuka

    Although the vitality of small private enterprises as the prime mover of the substantial economic growth in Wenzhou is widely recognized, empirical research investigating the development process of such private enterprises is useful. Based on a survey of enterprises producing low-voltage electric appliances, we find that the entry of a large number of new enterprises producing poor-quality products was followed by the upgrading of product quality and the introduction of new marketing strategies. Hence, we attempt to identify statistically the mechanisms underlying this evolutionary process of industrial development. (C) 2004 Association for Comparative Economic Studies. Published by Elsevier Inc. All rights reserved.

    ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004年09月, JOURNAL OF COMPARATIVE ECONOMICS, 32 (3), 542 - 563, 英語

    [査読有り]

    研究論文(学術雑誌)

  • T Sakurai, S Rayamajhi, RK Pokharel, K Otsuka

    This study compares the management performance of timber production among three management systems in Nepal: private forestry, community forestry with collective management, and community forestry with centralized management. While collective management relies entirely on community labor for the whole management, centralized management uses community labor for the protection of forests and hired labor for silvicultural operations, for example weeding, pruning, and thinning. We found that collective community management is less costly for the protection of planted trees but allocates less labor for the management of trees than private management. We also found that centralized management of natural forests leads to higher revenue and profit than collective management. These findings support the hypothesis that, while collective management is more efficient than private management for the protection of trees due to effective mutual supervision, profit-seeking private management or centralized management is more efficient than collective management for silvicultural operations due to superior work incentives. This study, however, failed to compare efficiency of private and centralized management.

    CAMBRIDGE UNIV PRESS, 2004年08月, ENVIRONMENT AND DEVELOPMENT ECONOMICS, 9 (4), 539 - 561, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Deqiang Liu, Keijiro Otsuka

    Despite the implementation of a series of state-owned enterprise (SOE) reforms in China since the inception of open door policies in 1978, the production share of the SOE sector has continued to decline in many industrial sectors because of the faster growth of township-village enterprises (TVEs) as well as joint ventures (Zhang 2002). Even in the iron and steel industry, which is generally characterized by large-scale economies and high capital intensity, the production share of TVEs increased from 4% in 1985 to 9% in 1990, and further to 21% in 2000.1 Furthermore, there has been no clear indication of improvement in management efficiency, which is reflected in increased total factor productivity. This study attempts to identify factors affecting the relative performance of SOEs and TVEs, using the panel data of 108 enterprises (59 SOEs and 49 TVEs) from 1995 to 1999 collected by our own survey. By estimating the production function separately for SOEs and TVEs, we first examine the efficiency-enhancing effects of SOE reforms that have transformed selected SOEs into stock companies and joint ventures.4 To the extent that the reforms introduce efficient management incentives, we expect that they have positive effects on production efficiency. Second, we examine if TVE reforms, which range from the introduction of the management responsibility system to the establishment of stock companies and private enterprises, are conducive to the efficient management of TVEs. Although TVE reforms may strengthen management incentives, they might have negative consequences on management efficiency if township and village governments significantly contribute to the transaction of materials and final products in the absence of efficient markets. Third, we attempt to identify the productivity effects of management interventions by the government in the form of the selection and appointment of chief executives of enterprises and the mode of payment of rewards to them. More specifically, by estimating both the production function and the reward function to enterprise managers simultaneously, we examine whether the government interventions have consistent impacts on production efficiency and the amount of rewards to managers. We argue that the interventions are distortional, if, for example, the government appointment of enterprise managers increases a manager's rewards without increasing production efficiency. Finally, we examine the differences in the rates of productivity growth between the TVE and SOE sectors from the coefficients of year dummies. The results of statistical analyses indicate that in order for SOEs to compete with TVEs, a major ownership reform of SOEs is indispensable. © 2004 by The University of Chicago. All rights reserved.

    2004年07月, Economic Development and Cultural Change, 52 (4), 759 - 780, 英語

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    研究論文(学術雑誌)

  • T Sonobe, M Kawakami, K Otsuka

    http://www.grips.ac.jp/list/jp/facultyinfo/sonobe_tetsushi/http://www.grips.ac.jp/list/jp/facultyinfo/otsuka_keijiro/

    UNIV CHICAGO PRESS, 2003年10月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 52 (1), 103 - 128, 英語

    [査読有り]

    研究論文(学術雑誌)

  • K Otsuka, AR Quisumbing, E Payongayong, JB Aidoo

    This study explores the effects of land tenure institutions on land use and management using household date from cocoa growing areas of Ghana. Various land tenure institutions with different land rights coexist in our sites, such as allocated family land, inherited land, appropriated village land, and land received as gift. While tree planting and the decision to leave land fallow may be affected by land tenure status, there are no significant differences in labor allocation and revenue of both cocoa and food crops among parcels under different land tenure institutions. These results support the hypothesis that management incentives of cocoa fields, but not food crop fields, tend to be equalized due to the incentive-enhancing effects of granting secure land rights after efforts to plant cocoa trees are expended.

    CAMBRIDGE UNIV PRESS, 2003年02月, ENVIRONMENT AND DEVELOPMENT ECONOMICS, 8 (1), 77 - 104, 英語

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    研究論文(学術雑誌)

  • Human capital, cluster formation, and international relocation: the case of the garment industry in Japan, 1968-98

    E Yamamura, T Sonobe, K Otsuka

    This article examines the changing roles of human capital in the process of the formation of industrial clusters, changes in marketing channels, and the relocation of the industrial base to less developed areas and abroad, based on a case study of a garment cluster in postwar Japan. We found, among other things, that experience as local traders played a major role in the cluster formation. However, formal schooling assumes greater importance in later stages, when direct transactions with large customers replaced transactions with local merchants, and the international relocation of the production base became a major management issue.

    OXFORD UNIV PRESS, 2003年01月, JOURNAL OF ECONOMIC GEOGRAPHY, 3 (1), 37 - 56, 英語

    [査読有り]

    研究論文(学術雑誌)

  • T Sonobe, DH Hu, K Otsuka

    In China industrial clusters consisting of small and medium enterprises have been proliferating in areas where private sectors have successfully developed. This study enquires into the process of forming a new industrial cluster and the roles of local and distant urban traders in the garment industry in China. We found that the local marketplace, where enterprise managers can easily purchase materials from and sell products to local traders, plays a critical role in stimulating the entry of new enterprises in the early stage of cluster development. As a cluster develops, however, entrepreneurial ability in producing high-quality products and marketing them to urban traders plays a more significant role.

    FRANK CASS CO LTD, 2002年10月, JOURNAL OF DEVELOPMENT STUDIES, 39 (1), 118 - 139, 英語

    [査読有り]

    研究論文(学術雑誌)

  • F Place, K Otsuka

    This article provides an empirical analysis of the impact of different tenure systems (mailo, customary, and public land) on agricultural investment and productivity in central Uganda. A major hypothesis tested is that land investments and practices may have both economic and tenure security implications. The results indicate that coffee planting is used by farmers to enhance tenure security, while fallowing is practised to a greater extent by farmers on more secure holdings. This supports the notion that farmers consider tenure implications when making investments and that different tenure systems do not inhibit the promotion of tree-planting investment. Tenure had no impact on the productivity of crop farming.

    FRANK CASS CO LTD, 2002年08月, JOURNAL OF DEVELOPMENT STUDIES, 38 (6), 105 - 128, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Poverty Reduction Issues: Village Economy Perspective.

    大塚 啓二郎

    2002年, Asian Development Review, 19 (1), 98 - 116, 英語

    [査読有り]

    研究論文(学術雑誌)

  • AR Quisumbing, K Otsuka

    This paper explores statistically the implications of the shift from communal to individualized tenure on the distribution of land and schooling between sons and daughters in matrilineal societies, based on a Sumatra case study. The inheritance system is evolving from a strictly matrilineal system to a more egalitarian system in which sons and daughters inherit the type of land which is more intensive in their respective work effort. While gender bias is either nonexistent or small in land inheritance, daughters tend to be disadvantaged with respect to schooling, The gender gap in schooling, however, appears to be closing for the generation of younger children. (C) 2001 Elsevier Science Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, 2001年12月, WORLD DEVELOPMENT, 29 (12), 2093 - 2110, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Gender differences in wealth transfer and expenditure allocation: Evidence from the rural Philippines

    JP Estudillo, AR Quisumbing, K Otsuka

    MARUZEN CO LTD, 2001年12月, DEVELOPING ECONOMIES, 39 (4), 366 - 394, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Does Economic Reform Help Rural Labour?

    K. Kalirajan, 大塚 啓二郎

    2001年12月, Indian Journal of Labour Economics, 44 (4), 853 - 871, 英語

    [査読有り]

    研究論文(学術雑誌)

  • AR Quisumbing, E Payongayong, JB Aidoo, K Otsuka

    UNIV CHICAGO PRESS, 2001年10月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 50 (1), 157 - 181, 英語

    [査読有り]

    研究論文(学術雑誌)

  • S Suyanto, TP Tomich, K Otsuka

    This study attempts to identify the impacts of land tenure institutions on the efficiency of farm management based on a case study of lowland paddy (rice) and upland cinnamon production in customary land areas of Sumatra. While the traditional joint-family ownership system is found to exist in paddy land, more individualised ownership systems are widely observed in upland areas. Yet, we found no statistical evidence that residual profit per unit of land is affected by land tenure institutions in either the lowlands or uplands, indicating that the prevailing land tenure institutions are equally conducive to efficient farm management.

    BLACKWELL PUBL LTD, 2001年09月, AUSTRALIAN JOURNAL OF AGRICULTURAL AND RESOURCE ECONOMICS, 45 (3), 411 - 436, 英語

    [査読有り]

    研究論文(学術雑誌)

  • SUYANTO S, SONOBE TETSUSHI, OTSUKA KEIJIRO, TOMICH THOMAS P

    It is widely believed that land tenure insecurity under a customary tenure system leads to a socially inefficient resource allocation. This article demonstrates that the practice of granting secure individual ownership to tree planters spurs earlier tree planting, which is inefficient from the private point of view but could be efficient from the viewpoint of the global environment. Regression analysis, based on primary data collected in Sumatra, indicates that an expected increase in tenure security in fact led to early tree planting. It is also found that customary land tenure institutions have been evolving towards greater tenure security responding to increasing scarcity of land. (C) 2001 Elsevier Science B.V. All rights reserved.

    WILEY-BLACKWELL, 2001年06月, AGRICULTURAL ECONOMICS, 25 (1), 85 - 101, 英語

    [査読有り]

    研究論文(学術雑誌)

  • ESTUDILLO JONNA P, QUISUMBING AGNES R, OTSUKA KEIJIRO

    This paper aims to examine changes in household income sources and its impact on household income distribution in the post-Green Revolution periods in 1985 and 1998 in the rural Philippines. We found that there has been a structural shift of household income away from farm in favor of nonfarm labor income sources. This finding indicates that rural development is being led by nonfarm sectors. Such a shift has resulted in an increase in household income inequality as the distribution of nonfarm income has become less equal over time and was markedly more unequal than that of farm income in 1998. (C) 2001 Elsevier Science B.V. All rights reserved.

    WILEY-BLACKWELL, 2001年06月, AGRICULTURAL ECONOMICS, 25 (1), 71 - 84, 英語

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    研究論文(学術雑誌)

  • S. Suyanto, Thomas P. Tomich, 大塚 啓二郎

    2001年06月, Agroforestry Systems, 52 (2), 145 - 160, 英語

    [査読有り]

    研究論文(学術雑誌)

  • JP Estudillo, AR Quisumbing, K Otsuka

    This article examines the difference in lifetime incomes arising from parental preferences in the allocation of land inheritance and investments in schooling between sons and daughters in the rural Philippines. Sons are preferred with respect to land inheritance, receiving 0.15 additional hectares of land, while daughters are treated more favourably. in schooling investments, receiving 1.5 more years of schooling. However; differences in both current and life-cycle incomes between sons and daughters are insignificant. This suggests that Filipino parents allocate intergenerational transfers to equalise incomes among their children, without sacrificing efficiency.

    FRANK CASS CO LTD, 2001年04月, JOURNAL OF DEVELOPMENT STUDIES, 37 (4), 23 - 48, 英語

    [査読有り]

    研究論文(学術雑誌)

  • ESTUDILLO Jonna P, OTSUKA Keijiro

    <p>The aim of this paper is to assess the impacts of successive generations of modern variety (MV) of rice on rice yields and income from 1966/67 to 1998/99. Yield rose albeit modestly following the release of first-generation of MVs (MV1), which are potentially higher yielding than the traditional varieties (TVs) but are susceptible to attacks of pests and diseases. Rice incom

    日本農業経済学会, 2001年03月, The Japanese journal of rural economics, 3, 51 - 64, 英語

    [査読有り]

    研究論文(学術雑誌)

  • SUYANTO S, 大塚 啓二郎

    2001年03月, Asian Economic Journal, 15 (1), 1 - 17, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Gender differences in land inheritance and schooling investments in the rural Philippines

    JP Estudillo, AR Quisumbing, K Otsuka

    This paper examines the preferences of parents with respect to the allocation of land and investments in schooling between sons and daughters in two generations of households in the rural Philippines. In the older generation, better-educated fathers prefer to invest in sons' schooling, while land-owning mothers preferentially bestow land to daughters. While gender preference in relation to parental resources has disappeared in the child generation, sons are preferred with respect to land inheritance, while daughters are treated more favorably in schooling investments.

    UNIV WISCONSIN, 2001年02月, LAND ECONOMICS, 77 (1), 130 - 143, 英語

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    研究論文(学術雑誌)

  • Frank Place, 大塚 啓二郎

    2001年, Economic Development and Cultural Change, 50 (1), 77 - 100, 英語

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    研究論文(学術雑誌)

  • TACHIBANA TOWA, NGUYEN TRUNG M, OTSUKA KEIJIRO

    Northern Vietnam has experienced significant deforestation due to the expansion of shifting cultivation fields. Since the late 1980s, with the introduction of individualized land rights, such agricultural extensification was followed by the agricultural intensification and regeneration of forests. Wt: present a dynamic model of agricultural intensification versus extensification and test its implications using commune-level data in 1978, 1987, and 1994. The results suggest that the choice between intensification and extensification is relevant in hilly areas with limited Aat land and sloped upland. and that strengthened land rights, particularly that on upland. tend to deter deforestation. (C) 2000 Academic Press.

    ACADEMIC PRESS INC, 2001年01月, Journal of Environmental Economics and Management, 41 (1), 44 - 69, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 内生的発展段階論

    大塚 啓二郎, 園部 哲史

    2001年01月, フィナンシャル・レビュー, (54), 日本語

    [査読有り]

    研究論文(学術雑誌)

  • PLACE FRANK, OTSUKA KEIJIRO

    This paper analyzes the factors determining conversion of woodlands to agricultural land. changes in tree cover, and maize yield for the last two and a half decades by using aerial photos and field survey data in 57 communities in Malawi. The econometric analysis revealed that population pressure led to greater land conversion but had no effect on yield or tree cover changes. Areas where greater changes in traditional tenure systems have occurred are associated with reduction in tree cover and expansion of agricultural land. These results suggest the importance of strengthening institutions to manage natural resources. (C) 2000 Academic Press.

    ACADEMIC PRESS INC, 2001年01月, Journal of Environmental Economics and Management, 41 (1), 13 - 32, 英語

    [査読有り]

    研究論文(学術雑誌)

  • T Sonobe, K Otsuka

    How can an economy grow in the early stages of economic development in the absence of total factor productivity growth, as has been allegedly the case in fast-growing East Asian economies? This paper advances the hypothesis that capital deepening associated with transformation of industrial structure can sustain growth for a long period without causing a decline in the rate of returns to capital. To examine our hypothesis, we develop a new decomposition formula for growth accounting that highlights such capital deepening. The formula is applied to data from prewar Japan, to assess the significance of industrial transformation in economic growth. (C) 2001 Elsevier Science B.V. All rights reserved.

    ELSEVIER SCIENCE BV, 2001年01月, JAPAN AND THE WORLD ECONOMY, 13 (1), 1 - 14, 英語

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    研究論文(学術雑誌)

  • 真野 裕吉, 大塚 啓二郎

    2000年09月, Journal of the Japanese and International Economies, 14 (3), 189 - 203, 英語

    [査読有り]

    研究論文(学術雑誌)

  • OTSUKA KEIJIRO

    The poor spend much of their income on food, depend primarily on labour earnings, and tend to reside in marginal agricultural areas. To reduce poverty, agricultural research should aim to ensure adequate food supplies by developing yield-increasing technologies, to increase labour demand by developing labour-using technologies and to develop technologies suitable for marginal areas. This article seeks to identify "appropriate" technologies that agricultural research should generate for poverty reduction. The identification is based on a review of the experience of the Green Revolution in rice production in Asia and an assessment of the changing structure of income sources among rural households in the Philippines. (C) 2000 Elsevier Science Ltd. All rights reserved.

    ELSEVIER SCI LTD, 2000年08月, Food Policy, 25 (4), 447 - 462, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Iriaichi: Collective versus individualized management of community forests in postwar Japan

    Y Kijima, T Sakurai, K Otsuka

    UNIV CHICAGO PRESS, 2000年07月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 48 (4), 867 - 886, 英語

    [査読有り]

    研究論文(学術雑誌)

  • PLACE FRANK, OTSUKA KEIJIRO

    2000年05月, Land Econonics, 76 (2), 233 - 251, 英語

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    研究論文(学術雑誌)

  • Green revolution, human capital, and off-farm employment: Changing sources of income among farm households in central Luzon, 1966-1994

    JP Estudillo, K Otsuka

    UNIV CHICAGO PRESS, 1999年04月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 47 (3), 497 - 523, 英語

    [査読有り]

    研究論文(学術雑誌)

  • OTSUKA Keijiro

    <p>This paper summarizes and extends the results of seven-country projects conducted in Ghana, Uganda, Malawi, Sumatra (Indonesia), Vietnam, Nepal, and Japan on the land tenure institutions and the management of forest, agroforest, and cropland. It is found that traditional or customary land tenure institutions possess no built-in mechanisms to prevent deforestation. They have

    日本農業経済学会, 1999年03月, The Japanese journal of rural economics, 1 (1), 25 - 38, 英語

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    研究論文(学術雑誌)

  • N Murakami, DQ Liu, K Otsuka

    Using survey data of machine tool manufacturing enterprises in China, this paper explores the effect of market reform on production efficiency by estimating a production function that includes dependence on purchased parts as an explanatory variable. According to the estimation results, the effect of purchased parts on production efficiency was insignificant in the early reform period but became significantly positive later. Further, we found that the dependence on purchased parts decreased with the size of enterprises, implying that the production efficiency became higher in smaller enterprises, including newly established township-village enterprises. (C) 1996 Academic Press, Inc.

    ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS, 1996年12月, JOURNAL OF COMPARATIVE ECONOMICS, 23 (3), 256 - 277, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Technology Policy, Development, and Employment

    大塚 啓二郎

    1995年12月, Asian Development Review, 13 (2), 105 - 137, 英語

    [査読有り]

    研究論文(学術雑誌)

  • TECHNICAL AND ALLOCATIVE EFFICIENCY AMONG SOCIALIST ENTERPRISES - THE CASE OF THE GARMENT INDUSTRY IN CHINA

    N MURAKAMI, DQ LIU, K OTSUKA

    Using survey data, this paper compares technical and allocative efficiency among state, urban collective, township-village, and joint venture enterprises in the garment industry in China. Township-village enterprises are further classified into independent enterprises and cooperative ventures with state and urban collective enterprises. According to the estimation results of the production and labor share functions, state and urban collective enterprises are much less efficient, both technically and allocatively, than cooperative township-village enterprise and joint ventures. These findings suggest that this new type of socialist enterprise and joint ventures will eventually dominate in the garment industry.

    ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS, 1994年12月, JOURNAL OF COMPARATIVE ECONOMICS, 19 (3), 410 - 433, 英語

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    研究論文(学術雑誌)

  • GREEN-REVOLUTION AND LABOR DEMAND IN RICE FARMING - THE CASE OF CENTRAL LUZON, 1966-90

    K OTSUKA, F GASCON, S ASANO

    While the adoption of modern rice varieties (MVs) increased labour requirements for crop care and other activities, it might have induced the adoption of labour-saving technologies. Thus, whether the net impact of MV adoption on labour demand is significantly positive is still debated in the green revolution literature. Using farm-level survey data collected in Central Luzon from 1966 to 1990, this study estimated simultaneously the labour-saving technology adoption and the labour demand functions. We found, among other things, that MVs increased labour demand significantly without inducing the widespread adoption of labour-saving technologies.

    FRANK CASS CO LTD, 1994年10月, JOURNAL OF DEVELOPMENT STUDIES, 31 (1), 82 - 109, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Second Generation’ MVs and the Evolution of the Green Revolution: The Case of Central Luzon, 1966-90.

    大塚 啓二郎, Fe Gascon, Seki Asano

    1994年05月, Agricultural Economics, 10 (3), 283 - 295, 英語

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    研究論文(学術雑誌)

  • 中国における郷鎮企業の発展とアパレル産業の発展

    大塚 啓二郎, 劉 徳強, 村上 直樹

    1994年04月, 経済研究, 45 (2), 日本語

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    研究論文(学術雑誌)

  • JATILEKSONO TUMARI, OTSUKA KEIJIRO

    In the green revolution literature, no systematic evaluation has been made of the impact of the adoption of modern rice varieties (MVs) on the returns to land. The literature has also ignored the impact of improved MVs over earlier MVs on productivity and factor prices. Based on farmers' recall data of land transactions in Lampung, Indonesia, we find that the adoption of a series of improved MVs increased land prices by increasing land productivity. This finding shows that the green revolution has been sustained by continuous efforts to develop and disseminate improved MVs. © 1993 American Agricultural Economics Association.

    1993年, AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS, 75 (3), 652 - 665, 英語

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    研究論文(学術雑誌)

  • Adoption and Productivity Impacts of New Rice Technology across Production Environments in Nepal.

    Hari K. UPADHYAYA, Cristina C. DAVID, 大塚 啓二郎, Ganesh B. THAPA

    1993年03月, Developing Economies, 31 (1), 122 - 137, 英語

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    研究論文(学術雑誌)

  • PERMANENT LABOR AND LAND TENANCY CONTRACTS IN AGRARIAN ECONOMIES - AN INTEGRATED ANALYSIS

    K OTSUKA, H CHUMA, Y HAYAMI

    Extending the existing models of land and labour contracts, this study attempts to build a general model of long-term agrarian contracts. The model implies that, where tenancy is an available option, the fixed-wage permanent labour contract will not be chosen. If it is chosen under institutional constraints on tenancy contracts, resulting resource allocations will be inefficient. Empirical relevance of the model is tested on data from the Philippines.

    WILEY-BLACKWELL, 1993年02月, ECONOMICA, 60 (237), 57 - 77, 英語

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    研究論文(学術雑誌)

  • Modern Rice Technology and Regional Factor Price Differential in Thailand.

    Somporn Isvilanonda, Sarun Wattanutchariya, 大塚 啓二郎

    1992年12月, Southeast Asian Journal of Agricultural Economics, 1 (2), 137 - 150, 英語

    [査読有り]

    研究論文(学術雑誌)

  • LAND AND LABOR CONTRACTS IN AGRARIAN ECONOMIES - THEORIES AND FACTS

    K OTSUKA, H CHUMA, Y HAYAMI

    AMER ECONOMIC ASSOC, 1992年12月, JOURNAL OF ECONOMIC LITERATURE, 30 (4), 1965 - 2018, 英語

    [査読有り]

    研究論文(学術雑誌)

  • EFFECT OF MODERN RICE VARIETIES AND IRRIGATION ON HOUSEHOLD INCOME-DISTRIBUTION IN NEPALESE VILLAGES

    G THAPA, K OTSUKA, R BARKER

    Since high-yielding modern rice varieties (MVs) are adopted only in favorable production environments, significant regional productivity differentials have emerged in Nepal. This study explores the distributional consequences of such differential MV adoption based on an intensive survey of favorable and unfavorable villages. We found that MV adoption increased returns to land but decreased family labor earnings from rice production, as it facilitated the substitution of hired for family labor. As a result, the differential MV adoption did not significantly worsen the household income distribution according to the results of the counterfactual Gini decomposition analysis.

    ELSEVIER SCIENCE BV, 1992年10月, AGRICULTURAL ECONOMICS, 7 (3-4), 245 - 265, 英語

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    研究論文(学術雑誌)

  • GREEN-REVOLUTION, LAND-REFORM, AND HOUSEHOLD INCOME-DISTRIBUTION IN THE PHILIPPINES

    K OTSUKA, CORDOVA, V, CC DAVID

    UNIV CHICAGO PRESS, 1992年07月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 40 (4), 719 - 741, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Two Decades of Green Revolution in Central Luzon.

    大塚 啓二郎, Fe Gascon

    1992年06月, Southeast Asian Journal of Agricultural Economics, 1 (1), 45 - 62, 英語

    [査読有り]

    研究論文(学術雑誌)

  • SEGMENTATION IN RURAL FINANCIAL-MARKETS - THE CASE OF NEPAL

    S YADAV, K OTSUKA, CC DAVID

    Based on a farm household survey in Nepal, this study found that farm size and irrigation are major determinants of borrowing from formal institutions, whereas family size is the most decisive factor in borrowing from informal sources. Formal sector borrowing per hectare of cultivated area, however, initially increases and then decreases with farm size. Our analysis indicates that while very small farmers tend to be excluded from the formal financial market because of a lack of collateral, very large farmers choose to borrow less from that source because of lower production efficiency.

    PERGAMON-ELSEVIER SCIENCE LTD, 1992年03月, WORLD DEVELOPMENT, 20 (3), 423 - 436, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Differential Adoption of Modern Rice Technology and Labour Market Adjustments in South India

    Ramasamy C, 大塚 啓二郎

    1992年03月, Bangladesh Development Studies, 20 (1), 93 - 107, 英語

    [査読有り]

    研究論文(学術雑誌)

  • The Modern Rice Technology and Adoption of Labor Saving Technology in Rice Production: The Tamil Nadu Case.

    C. Ramasamy, P. Paramasivam, 大塚 啓二郎

    1992年, Indian Journal of Agricultural Economics, 47 (1), 35 - 47, 英語

    [査読有り]

    研究論文(学術雑誌)

  • アジアの稲作農むらの貧困と土地制度

    大塚 啓二郎

    1991年10月, 経済研究, 42 (4), 日本語

    [査読有り]

    研究論文(学術雑誌)

  • LAND PAWNING IN THE PHILIPPINES - AN EXPLORATION INTO THE CONSEQUENCES OF LAND-REFORM REGULATIONS

    G NAGARAJAN, MA OUISUMBING, K OTSUKA

    MARUZEN CO LTD, 1991年06月, DEVELOPING ECONOMIES, 29 (2), 125 - 144, 英語

    [査読有り]

    研究論文(学術雑誌)

  • DETERMINANTS AND CONSEQUENCES OF LAND-REFORM IMPLEMENTATION IN THE PHILIPPINES

    K OTSUKA

    Unlike the experience of other developing countries, land reform in the Philippines has been successful in converting many of share tenants to land reform beneficiaries. This study indicates that the implementation of land reform is positively associated with yield growth made possible by the adoption of modern seed-fertilizer technology. A major reason underlying such association is considered to be an increased economic interest of tenants in land reform arising from divergence of rental value of land from leasehold rent and amortization fees prescribed by law.

    ELSEVIER SCIENCE BV, 1991年04月, JOURNAL OF DEVELOPMENT ECONOMICS, 35 (2), 339 - 355, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 最新の種子・肥料技術と省力化技術の採用―フィリピンの事例

    OTSUKA KEIJIRO, DAVID CRISTINA C

    While intervillage differences in the adoption of modern rice varieties (MVs) are explained mainly by environmental variables, rather than by socioeconomic factors, relative factor prices are the most important determinants of the adoption of labour-saving technologies. There is no indication that MV adoption is correlated with the adoption of tractors and threshers as well as cropping intensities. Adoption of direct seeding, however, appears to be associated with MV adoption.

    AUSTRALIAN AGR ECON SOC, 1990年08月, AUSTRALIAN JOURNAL OF AGRICULTURAL ECONOMICS, 34 (2), 132 - 146, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Violeta G. Cordova, Cristina C. David

    Fear has been widely expressed that the modern rice varieties have created large disparities in regional income distribution, as the productivity gap between favorable and unfavorable rice-production environments widened due to differential technology adoption throughout South and Southeast Asia over the last two decades. Technology affects the income of farm population directly through its effects on productivity and factor use, and indirectly through its effect on factor prices. In particular, the ultimate distributional impact of modern varieties will critically depend on the interregional labor-market adjustments through migration in response to regional wage differentials created by the differential technology adoption, since labor is the main resource of the majority of the rural population. We studied favorable and unfavorable rice-growing villages in the Philippines, and found that adoption of modern varieties during the 1970s was positively related to population growth rate. Contrary to popular belief, no association was observed between wage rates and adoption of modern varieties as of 1986. These findings support the hypothesis that the differential adoption of modern rice varieties induced interregional labor migration toward equalization of wage income across different production environments. © 1990.

    1990年, Agricultural Economics, 4 (3-4), 297 - 314, 英語

    [査読有り]

    研究論文(学術雑誌)

  • DIFFERENTIAL ADOPTION OF MODERN RICE TECHNOLOGY AND REGIONAL WAGE DIFFERENTIAL IN NEPAL

    HK UPADHYAYA, K OTSUKA, CC DAVID

    FRANK CASS CO LTD, 1990年04月, JOURNAL OF DEVELOPMENT STUDIES, 26 (3), 450 - 468, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Naoki Murakami

    In contract theory, resource allocation under the share contract is generally considered to be inefficient relative to that under the leaseholder contract because of the disincentive effect of output sharing on work effort. Contrary to theoretical expectation, however, it is found in taxicab operation in Kyoto that the share contract can be made to be no less efficient than the leasehold contract. We identify through regression analysis that the problem of work incentives associated with the share contract is largely resolved by such supplementary incentive schemes as bonus payment and severance pay. © 1989.

    1989年, Journal of The Japanese and International Economies, 3 (3), 231 - 249, 英語

    [査読有り]

    研究論文(学術雑誌)

  • THEORIES OF SHARE TENANCY - A CRITICAL SURVEY

    K OTSUKA, Y HAYAMI

    UNIV CHICAGO PRESS, 1988年10月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 37 (1), 31 - 68, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 労働誘因と生産責任制:集団農業の理論と中国農業の制度変革

    大塚 啓二郎, 劉 徳強

    1987年03月, アジア経済, 28 (3), 日本語

    [査読有り]

    研究論文(学術雑誌)

  • Keijiro Otsuka, Naoki Murakami

    The paper examines how efficiency of sharecropping under uncertainty can be tested empirically. It demonstrates even under uncertainty, equality of factor ratios between sharecropped land and owner‐cultivated land supports the hypothesis that the terms of share contracts are effectively enforced by landlords, so as to achieve socially optimum resource allocation and risk sharing, unless the direct elasticities of substitution are identically equal to one. It also provides evidence, that the comparative yield tests conducted in different parts of South and Southeast Asia support the efficiency view of sharecropping. Copyright © 1987, Wiley Blackwell. All rights reserved

    1987年, Asian Economic Journal, 1 (1), 125 - 145, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 分益小作契約とエイジェンシーの理論:展望

    大塚 啓二郎

    1986年12月, 季刊理論経済学, 37 (4), 日本語

    [査読有り]

    研究論文(学術雑誌)

  • 加工原料乳不足払い制度の経済分析

    大塚 啓二郎

    1986年12月, 農業経済研究, 58 (3), 日本語

    [査読有り]

    研究論文(学術雑誌)

  • INDUCED BIAS OF TECHNICAL CHANGE IN AGRICULTURE - THE UNITED-STATES AND JAPAN, 1880-1980

    T KAWAGOE, K OTSUKA, Y HAYAMI

    UNIV CHICAGO PRESS, 1986年06月, JOURNAL OF POLITICAL ECONOMY, 94 (3), 523 - 544, 英語

    [査読有り]

    研究論文(学術雑誌)

  • COMMUNITY AND MARKET IN CONTRACT CHOICE - THE JEEPNEY IN THE PHILIPPINES

    K OTSUKA, M KIKUCHI, Y HAYAMI

    UNIV CHICAGO PRESS, 1986年01月, ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, 34 (2), 279 - 298, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 分益小作制度研究における理論と実証

    大塚 啓二郎

    1985年01月, 経済研究, 36 (1), 75 - 84, 日本語

    [査読有り]

    研究論文(学術雑誌)

  • GOALS AND CONSEQUENCES OF RICE POLICY IN JAPAN, 1965-80

    K OTSUKA, Y HAYAMI

    AMER AGRICULTURAL ECONOMICS ASSOC, 1985年, AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS, 67 (3), 529 - 538, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 分益小作制度理論の再検討

    大塚 啓二郎, 川越 俊彦

    1982年07月, 農業総合研究, 36 (3), 日本語

    [査読有り]

    研究論文(学術雑誌)

  • EFFICIENCY AND EQUITY IN THE PRODUCER LEVY OF INDIA

    Y HAYAMI, K SUBBARAO, K OTSUKA

    AMER AGRICULTURAL ECONOMICS ASSOC, 1982年, AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS, 64 (4), 655 - 663, 英語

    [査読有り]

    研究論文(学術雑誌)

  • 技術改善と技術普及:水稲保護苗代を事例とする研究

    大塚 啓二郎

    1975年06月, 農業経済研究, 47 (1), 日本語

    [査読有り]

    研究論文(学術雑誌)

書籍等出版物

  • Paths to the Emerging State in Asia and Africa

    大塚 啓二郎, 杉原 薫

    共編者(共編著者), Springer, 2019年

  • Applying the Kaizen in Africa: A New Avenue for Industrial Development

    大塚 啓二郎, 神 公明

    共編者(共編著者), Palgrave Macmillan, 2018年, 英語

    学術書

  • Moving out of Poverty: An Inquiry into Inclusive Growth in Asia

    大塚 啓二郎, エスチュディロ ジョナ

    共著, Routledge, 2016年, 英語

    学術書

  • In Pursuit of an African Green Revolution: Views from Rice and Maize Farmers’ Fields

    大塚 啓二郎, ローソン ドナルド F

    共編者(共編著者), Springer, 2016年, 英語

    学術書

  • Industrial Districts in History and the Developing World

    橋野 知子, 大塚啓二郎

    共編者(共編著者), Springer, 2016年, 英語

    学術書

  • これからの日本の国際協力:ビッグ・ドナーからスマート・ドナーへ

    黒崎 卓, 大塚 啓二郎

    共編者(共編著者), 日本評論社, 2015年, 日本語

    学術書

  • なぜ貧しい国はなくならないのか

    大塚 啓二郎

    単著, 日本経済新聞出版社, 2014年, 日本語

    学術書

  • State Building and Development

    大塚 啓二郎, 白石 隆

    共編者(共編著者), Routledge, 2014年, 英語

    学術書

  • Cluster-based Industrial Developments: Kaizen Management for MSE Growth in Developing Countries

    園部 哲史, 大塚 啓二郎

    共著, Palgrave Macmillan, 2014年, 英語

    学術書

  • Land Tenure Reforms in Asia and Africa: Assessing Impacts on Poverty and Natural Resource Management

    Stein Holden, 大塚 啓二郎, Klaus Deininger

    共編者(共編著者), Palgrave Macmillan, 2013年, 英語

    学術書

  • An African Green Revolution: Finding Ways to Boost Productivity on Small Farms

    大塚 啓二郎, Donald Larson

    共編者(共編著者), Springer, 2013年, 英語

    学術書

  • Can Economic Growth Be Sustained? (edited with C. Ford Runge)

    Oxford University Press, 2011年12月

  • Emerging Development of Agriculture in East Africa: Markets, Soil, and Innovations (edited with Takashi Yamano and Frank Place)

    Springer, 2011年05月

  • Miraculous Growth and Stagnation in Post-War Japan(edited with Koichi Hamada, Gustav Ranis, and Ken Togo)

    Routledge, 2011年04月

  • Miraculous Growth and Stagnation: Lessons from the Experience of Postwar Japanese Economic Development

    Koichi Hamada, 大塚 啓二郎, Gustav Ranis, Ken Togo

    共編者(共編著者), UK: Routledge, 2011年, 英語

    学術書

  • Emerging Development of Agriculture in East Africa: Markets, Soil, and Innovations

    Takashi Yamano, 大塚 啓二郎, Frank Place

    共編者(共編著者), Springer, 2011年, 英語

    学術書

  • Community, Market, and State in Development: In Honor of Professor Yujiro Hayami. (edited with Kaliappa Kalirajan)

    Palgrave Macmillan, 2011年

  • Community, Market, and State in Development: In Honor of Professor Yujiro Hayami

    大塚 啓二郎, Kaliappa Kalirajan

    共編者(共編著者), Palgrave Macmillan, 2011年, 英語

    学術書

  • Cluster-Based Industrial Development: A Comparative Study of Asia and Africa(edited with Tetsushi Sonobe)

    Palgrave Macmillan, 2011年

  • Cluster-Based Industrial Development: A Comparative Study of Asia and Africa

    園部 哲史, 大塚 啓二郎

    共著, Hampshire, UK: Palgrave Macmillan, 2011年, 英語

    学術書

  • Can Economic Growth Be Sustained? The Collected Papers of Vernon W. Ruttan and Yujiro Hayami

    大塚 啓二郎, C. Ford Runge

    共編者(共編著者), Oxford University Press, 2011年, 英語

    学術書

  • 模倣型経済の躍進と足ぶみ:戦後の日本経済を振り返る

    大塚 啓二郎, 東郷 賢, 浜田 宏一

    共編者(共編著者), ナカニシヤ出版, 2010年, 日本語

    学術書

  • 国家と経済発展

    大塚 啓二郎, 白石 隆

    共編者(共編著者), 東洋経済新報社, 2010年, 日本語

    学術書

  • 『模倣型経済の躍進と足ぶみ:日本戦後史の遺産と教訓』浜田宏一、東郷賢氏と共編著)

    ナカニシヤ出版, 2010年

  • The Emergence of Land Markets in Africa: Assessing the Impacts on Poverty, Equity, and Efficiency

    Stein T. Holden, 大塚 啓二郎, Frank Place

    共編者(共編著者), Washington, DC : Resources for the Future, c2009, 2009年, 英語

    学術書

  • Rural Poverty and Income Dynamics in Asia and Africa

    大塚 啓二郎, Jonna P. Estudillo, Yasuyuki Sawada

    共編者(共編著者), London, UK: Routledge, 2009年, 英語

    学術書

  • Agriculture in Developing Countries: Technology Issues

    Kaliappa Kalirajan, 大塚 啓二郎

    共編者(共編著者), New Delhi: Sage Publications, 2008年, 英語

    学術書

  • 貧困と経済発展:アジアの経験とアフリカの現状

    大塚 啓二郎, 櫻井 武司

    共編者(共編著者), 東洋経済新報社, 2007年, 日本語

    学術書

  • 『貧困と経済発展:アジアの経験とアフリカの現状』(櫻井武司氏と共編著)

    東洋経済新報社, 2007年

  • Contributions of Agricultural Economics to Critical Policy Issues

    Kaliappa Kalirajan, 大塚 啓二郎

    共編者(共編著者), Wiley-Blackwell, 2007年, 英語

    学術書

  • Cluster-Based Industrial Development: An East Asian Model

    園部 哲史, 大塚 啓二郎

    共著, Palgrave Macmillan, 2006年, 英語

    学術書

  • 産業発展のルーツと戦略:日中台の経験に学ぶ

    大塚 啓二郎, 園部 哲史

    共著, 知泉書館, 2004年, 日本語

    学術書

  • 『産業発展のルーツと戦略:日中台の経験に学ぶ』(園部哲史氏と共著)

    知泉書館, 2004年

  • Land and Schooling: Transferring Wealth across Generations

    Agnes R. Quisumbing, Jonna, P. Estudillo, 大塚 啓二郎

    共著, Johns Hopkins University Press, 2004年, 英語

    学術書

  • 教育と経済発展:途上国における貧困削減にむけて

    大塚 啓二郎, 黒崎 卓

    共編者(共編著者), 東洋経済新報社, 2003年, 日本語

    学術書

  • 『教育と経済発展:途上国における貧困削減にむけて』(黒崎卓氏と共編著)

    東洋経済新報社, 2003年

  • 現代経済学の潮流2002

    大塚 啓二郎, 中山 幹夫, 福田 慎一, 本多 佑三

    共編者(共編著者), 東洋経済新報社, 2002年, 日本語

    学術書

  • 『現代経済学の潮流2002』(中山幹夫、福田慎一、本多佑三氏と共編)

    東洋経済新報社, 2002年

  • Land Tenure and Natural Resource Management: A Comparative Study of Agrarian Communities in Asia and Africa

    大塚 啓二郎, Frank Place

    共編者(共編著者), Johns Hopkins University Press, 2001年, 英語

    学術書

  • 消えゆく森の再生学

    大塚 啓二郎

    単著, 講談社現代新書, 1999年, 日本語

    学術書

  • Industrial Reform in China: Past Performance and Future Prospects

    大塚 啓二郎, Deqiang Liu, Naoki Murakami

    共著, Oxford: Clarendon Press, 1998年, 英語

    学術書

  • 中国のミクロ経済改革:企業と市場の数量分析

    大塚 啓二郎, 劉 徳強, 村上 直樹

    共著, 日本経済新聞社, 1995年, 日本語

    学術書

  • 『中国のミクロ経済改革:企業と市場の数量分析』(劉徳強・村上直樹氏と共著)

    日本経済新聞社, 1995年

  • Modern Rice Technology and Income Distribution in Asia

    Cristina C. David, 大塚 啓二郎

    共編者(共編著者), Lynne Rienner, 1994年, 英語

    学術書

  • The Economics of Contract Choice: An Agrarian Perspective.

    速水 佑次郎, 大塚 啓二郎

    共著, Oxford: Clarendon Press, 1993年, 英語

    学術書

  • Comparative Technology Choice in Development: The Indian and Japanese Cotton Textile Industries

    大塚 啓二郎, Gustav Ranis, Gary Saxonhouse

    共著, London: Macmillan Press, 1988年, 英語

    学術書

講演・口頭発表等

  • A Review of the Literature on Productivity Impacts of Global Value Chains and Foreign Direct Investment: Towards an Integrated Approach

    OTSUKA Keijiro, MURAKAMI Yoshimichi

    APLセミナー(アジ研パワーランチセミナー), 2017年08月, 英語, ジェトロ・アジア経済研究所, ジェトロ・アジア経済研究所, 国際会議

    口頭発表(一般)

  • A Review of the Literature on GVC and FDI: Towards an Integrated Approach

    OTSUKA Keijiro, MURAKAMI Yoshimichi

    RIEBセミナー(六甲フォーラム/神戸大学社会システムイノベーションセンター共催), 2017年07月, 英語, 神戸大学大学院経済学研究科, 神戸大学, 国内会議

    公開講演,セミナー,チュートリアル,講習,講義等

  • In Pursuit of an African Green Revolution

    大塚 啓二郎

    REAP Seminar, 2016年11月, 英語, Freeman Spogli Institute for International Studies, Stanford University, 国際会議

    [招待有り]

    口頭発表(招待・特別)

  • What Determines Success and Failure of Cluster-Based Industrial Development?

    大塚 啓二郎

    Japan Program Seminar, 2016年10月, 英語, Freeman Spogli Institute for International Studies, Stanford University, 国際会議

    [招待有り]

    口頭発表(招待・特別)

  • In Pursuit of an African Green Revolution

    大塚 啓二郎

    5th Conference of African Association of Agricukltural Economists, 2016年09月, 英語, アディスアベバ(エチオピア), 国際会議

    口頭発表(基調)

所属学協会

  • 日本経済学会

  • 日本学術会議 会員(一部)

  • 国際農業経済学会

共同研究・競争的資金等の研究課題

  • アフリカにおける緑の革命

    国際共同研究, 2005年 - 2020年

    競争的資金

  • 大塚 啓二郎

    科学研究費補助金/基盤研究(A), 2015年04月 - 2019年03月, 研究代表者

    競争的資金

  • アジアとアフリカにおける産業集積型発展

    科学技術振興調整費による中核的研究拠点(COE)育成, 2008年 - 2012年

    競争的資金

  • Cluster-based Industrial Development in Asia and Africa

    SCF System for Establishment and Support of Center's of Excellence, 2008年 - 2012年

    競争的資金

  • Poverty Dynamics in Asia and Africa

    SCF System for Establishment and Support of Center's of Excellence, 2008年 - 2012年

    競争的資金

  • Green Revolution in Africa

    International Joint Research Projects, 2005年 - 2008年

    競争的資金