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MA Yan
Graduate School of Business Administration / Division of Business Administration
Professor

Researcher basic information

■ Research Areas
  • Humanities & social sciences / Economic policy

Research activity information

■ Paper
  • Hiroshi Goto, Yan Ma, Nobuyuki Takeuchi
    Corresponding, Elsevier BV, Apr. 2025, Journal of Economic Theory, 225, 105994 - 105994, English
    [Refereed]
    Scientific journal

  • Acquirers’ corporate governance ratings and the likelihood of deal completion: Do stakeholders care about the agency hazards of European cross-border acquirers?
    Wafa Tariq Waqar, Yan Ma
    Corresponding, Sep. 2023, Review of Managerial Science, English
    [Refereed]
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • The Role and Effect of Institution in International Trade
    Yan Ma, Lingfeng Zhou
    Lead, Jun. 2023, 国民経済雑誌, 227(4) (4), 95 - 105
    Scientific journal

  • Wafa Tariq Waqar, Yan Ma
    Corresponding, Oct. 2022, BRQ Business Research Quarterly, English
    [Refereed]
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • Skill Diversity と貿易パターン ―Grossman and Maggi（2000）の命題 4 に関する一考察
    後藤啓, 馬 岩, 竹内信行
    Corresponding, May 2021, 『国民経済雑誌』, 223(5) (5), 1 - 13
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • Studies on the Distribution of Human Capital and Globalization: An Introductory Overview
    MA Yan
    In this paper, I survey the recent literature that theoretically investigates how globalization is affected by the distribution of skills and the effects of globalization on income distribution. I focus on two types of matching: matching between (the same type and different types of) workers and matching between workers and tasks (industries).
    Jun. 2019, 国民経済雑誌, 219(6) (6), 21 - 33, English
    Research institution

  • Submodularity, Comparative Advantage, and Offshoring
    Yan MA
    神戸大学経済経営学会, Aug. 2017, 国民経済雑誌, 216(2) (2), 73 - 82, English
    Research institution

  • 国際貿易
    MA Yan
    Mar. 2016, ハンドブック経営学［改訂版］（神戸大学経済経営学会編，ミネルヴァ書房）, 212 - 225, Japanese
    Research institution

  • Skill Sensitivity and Offshoring in a North-South Model
    Yan MA
    Kobe University, Aug. 2015, 国民経済雑誌, 212(8) (8), 81 - 90, English
    Research institution

  • The Product Cycle Hypothesis: the Role of Quality Upgrading and Market Size
    MA Yan
    Jun. 2015, International Review of Economics and Finance, English
    [Refereed]
    Scientific journal

  • MA Yan
    Kobe University, Aug. 2013, 国民経済雑誌, 208(2) (2), 91 - 97, English
    Research institution

  • Supermdular and Supply Chain without the South
    MA Yan, Wanida Ngienthi, Fumio Dei
    Corresponding, Jul. 2013, Review of International Economics, 21, 562 - 567, English
    [Refereed]
    Scientific journal

  • Eric W. Bond, Yan Ma
    Corresponding, Blackwell Publishing Ltd, 2013, Pacific Economic Review, 18(5) (5), 603 - 627, English
    [Refereed]
    Scientific journal

  • Offshoring and Supermodularity
    MA Yan
    Kobe University, Sep. 2011, 国民経済雑誌, 204(3) (3), 33 - 46, English
    Scientific journal

  • Yan Ma, Fumio Dei
    Lead, May 2009, REVIEW OF INTERNATIONAL ECONOMICS, 17(2) (2), 244 - 260, English
    [Refereed]
    Scientific journal

  • 流通部門の技術進歩および比較優位
    馬 岩
    Kobe University, 2009, 国民経済雑誌, 200(3) (3), 33 - 46, Japanese
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • Yan Ma
    2009, INTERNATIONAL REVIEW OF ECONOMICS & FINANCE, 18(1) (1), 70 - 80, English
    [Refereed]
    Scientific journal

  • MA Yan
    Kobe University, Nov. 2007, 国民経済雑誌, 196(5) (5), 63 - 78, Japanese
    Research institution
    Link to Kobe Univ. Repository (Kernel)

  • "Quality Goods, Trade Liberalization and Wage Inequality"
    Ma Yan
    Aug. 2006, Disucussion Paper Series(Kobe University Graduate School of Business Administration), 2006・35, English
    Scientific journal

  • Vertical Production Chain, Trade and Tariffs in a Two-Factor Model
    Ma Yan
    Jul. 2005, Disucussion Paper Series(Kobe University Graduate School of Business Administration), 2005・22, English
    Scientific journal

  • 「垂直的生産チェーンの2要素モデルにおける貿易理論の基本的諸定理」
    Ma Yan
    Jan. 2005, 『博士論文』, Japanese
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • Vertical Production Chain, Trade and Tariffs in a Two-Factor Model
    MA Yan
    Jan. 2005, 博士論文, -, Japanese
    Scientific journal

  • 「Yano and Dei モデルの拡張:企業数の内生化」
    Ma Yan
    Kobe University, Jun. 2004, 『六甲台論集－経営学編－』, 第51巻第1号。(1) (1), 1 - 13, Japanese
    Scientific journal

■ Lectures, oral presentations, etc.
  • Super/submodularity, Skill Sensitivity, and Global Supply Chains
    Yan Ma
    The 20th Annual Meeting of the 2025 Asia Pacific Trade Seminars, Jun. 2025, English
    [Invited]
    Public symposium

  • Offshoring and the distribution of skills
    Yan Ma
    The 19th Annual Meeting of the 2024 Asia Pacific Trade Seminars, Jun. 2024, English
    [Invited]
    Public symposium

  • Super/submodularity, Skill Sensitivity, and Global Supply Chains
    Yan Ma
    17th Australlian Trade Workshop 2024, Mar. 2024, English
    [Invited]
    Public symposium

  • Super/submodularity, Skill Sensitivity, and Global Supply Chains
    馬岩
    Seminar at School of Business and Economics, Vrije Universiteit Amsterdam, Aug. 2023, English
    [Invited]
    Oral presentation

  • Super/submodularity, Skill Sensitivity, and Global Supply Chains
    2023 Organizational Economics Conference, Jul. 2023, English
    [Invited]
    Oral presentation

  • Trade Liberalization and Patent Filings in China
    Kobe-Sheffield research workshop, Jan. 2021
    [Invited]
    Oral presentation

  • Diversity and Offshoring
    MA Yan
    2019 Tsinghua Workshop on International Trade, May 2019, English, School of Economics and Management, Tsinghua University, How does the distribution of human capital affect offshoring? To study this question, we extend Grossman and Maggi (2000) to allow offshoring, which means that workers in different countries can collaborate in teams. We first examine how changes in the average skill level and skill diversity affect matching patterns and wage schedules under autarky. Next, we investigate the eff, International conference
    [Invited]
    Invited oral presentation

  • Border Carbon Adjustments and Foreign Direct Investment with Technology Transfer
    MA Yan
    Seminar on Public Economics and Tax 2019, No. 6, May 2019, English, School of Public Finance and Taxation, ShanDong University of Finance and Economics, Implementing a carbon price in a country may cause production migration and carbon leakage to another country that does not have a comparable carbon price. To tackle the leakage problem, Border Carbon Adjustments (BCAs) are proposed, i.e., carbon tari§s on imports and carbon price refunds for exports. Although pollution-haven foreign direct investment (FDI) could act as a chann, International conference
    [Invited]
    Invited oral presentation

  • Diversity and Offshoring
    MA Yan
    China-Japan Workshop on International Economics, Mar. 2019, English, School of Economics and Management, Tsinghua University, How does the distribution of human capital affect offshoring? To study this question, we extend Grossman and Maggi (2000) to allow offshoring, which means that workers in different countries can collaborate in teams. We first examine how changes in both average skill and skill dispersion affect matching rules and wage schedules under autarky. Next, we investigate how the averag, International conference
    [Invited]
    Invited oral presentation

  • Diversity and Offshoring
    MA Yan
    Workshop on Trade and FDI, Dec. 2018, English, Kobe University, How does the distribution of human capital affect offshoring? To study this question, we extend Grossman and Maggi (2000) to allow offshoring, which means that workers in different countries can collaborate in teams. We first examine how changes in average skill and in skill dispersion affect matching rules and wage schedules under autarky. Next, we investigate how the average, International conference
    Public discourse

  • Diversity and Offshoring
    MA Yan
    Southern Economic Association 88th Annual Meetings, Nov. 2018, English, Marriott Marquis Washington DC, Washington, DC, How does the distribution of human capital affect offshoring? To study this question, we extend Grossman and Maggi (2000) to allow offshoring, which means that workers in different countries can collaborate in teams. We first examine how changes in average skill and in skill dispersion affect matching rules and wage schedules under autarky, respectively. Next, we investigate ho, International conference
    Oral presentation

  • Diversity and Offshoring
    MA Yan
    Talk Trade Indianan University, Oct. 2018, English, Economics Department of Indiana University, How does the distribution of human capital affect offshoring? To study this question, we extend Grossman and Maggi (2000) to allow offshoring, which means that workers in different countries can collaborate in teams. We first examine how changes in average skill and in skill dispersion affect matching rules and wage schedules under autarky, respectively. Next, we investigate ho, International conference
    [Invited]
    Public discourse

  • Innovation, Growth, and the Distribution of Human Capita
    MA Yan
    Asia Pacific Trade Seminars, the 14th annual meeting, Jun. 2018, English, Hong Kong University of Science and Technology, Hong Kong University of Science and Technology, International conference
    Oral presentation

  • How do the average skill level and skill dispersion affect offshoring?
    MA Yan
    Workshop on International and Urban Economics 2018, Jun. 2018, English, Shanghai University of International Business and Economics, Shanghai University of International Business and Economics, International conference
    [Invited]
    Invited oral presentation

  • How do the average skill level and skill dispersion affect offshoring?
    MA Yan
    Australasian Trade Workshop, the 13th annual meeting, Mar. 2018, English, The University of Auckland, The University of Auckland, International conference
    Oral presentation

  • Innovation, Growth and the Distribution of Human Capital
    MA Yan
    国際経済学セミナー, Jul. 2017, English, 京都大学, 京都大学, Domestic conference
    [Invited]
    Invited oral presentation

  • How do the average skill level and skill dispersion affect offshoring?
    MA Yan
    Asia Pacific Trade Seminars, the 13th annual meeting, Jun. 2017, English, Foreign Trade University, Foreign Trade University, International conference
    Oral presentation

  • Supermodularity, Comparative Advantage, and Global Supply Chains
    MA Yan
    Australasian Trade Workshop, the 12th annual meeting, Mar. 2017, English, Queensland University of Technology, Queensland University of Technology, International conference
    Oral presentation

  • How do the average skill level and skill dispersion affect offshoring?
    MA Yan
    国際経済学ワークショップ, Mar. 2017, English, 神戸大学, 神戸大学, Domestic conference
    Oral presentation

  • How do the average skill level and skill dispersion affect offshoring?
    MA Yan
    Midwest Economic Theory and International Trade Meetings, Fall 2016 meeting, Nov. 2016, English, Purdue University, Purdue University, International conference
    Oral presentation

  • Supermodularity, Comparative Advantage,and Global Supply Chain
    MA Yan
    地域科学セミナー, Apr. 2016, English, 香川大学, 香川大学, Domestic conference
    [Invited]
    Invited oral presentation

  • Supermodularity, Comparative Advantage, and Global Supply Chains
    MA Yan
    Midwest Economic Theory and International Trade Meetings, Fall 2015 meeting, Oct. 2015, English, Penn State University, Penn State University, International conference
    Oral presentation

  • Supermodularity, Comparative Advantage, and Global Supply Chains
    MA Yan
    15th Society for the Advancement Economic Theory, Jul. 2015, English, Cambridge University, International conference
    Oral presentation

  • Innovation, Growth and the Distribution of Human Capital
    MA Yan
    10th Australasian Trade Workshop, Apr. 2015, English, University of Sydney, International conference
    Oral presentation

  • Innovation, Growth and the Distribution of Human Capital
    MA Yan
    Fall 2014 Midwest Economic Theory and International Trade Meetings, Oct. 2014, English, Kansas University, International conference
    Oral presentation

  • Foreign Investment and Border Carbon Adjustment
    MA Yan
    Economics Department Seminar, Oct. 2014, English, Colgate Univeristy, Colgate Univeristy, International conference
    [Invited]
    Invited oral presentation

  • Supermodularity, Comparative Advantage, and Global Supply Chains
    MA Yan
    10th Asia Pacific Trade Seminars,, Jun. 2014, English, Sogang University, International conference
    Oral presentation

  • Learning by Doing and Fragmentation
    MA Yan
    The 15th Annual Conference of European Trade Study Group, Sep. 2013, English, University of Birmingham, International conference
    Oral presentation

  • Foreign Investment and Border Carbon Adjustments
    MA Yan
    The 4th International Conference on Economics of Global Interactions: New Perspectives on Trade Factor Mobility and Development, Sep. 2013, English, Bari University, International conference
    Oral presentation

  • Foreign Investment and Border Carbon Adjustments
    MA Yan
    The 9th Annual Meeting of Asia and Pacific Trade Seminars, Jun. 2013, English, Southeast University, International conference
    Oral presentation

  • Foreign Investment and Border Carbon Adjustment
    MA Yan, 蓬田 守弘
    経済研究所セミナー, Jun. 2013, English, 京都大学, 京都大学, Domestic conference
    [Invited]
    Invited oral presentation

  • Learning by Doing and Fragmentation
    MA Yan, Eric Bond
    国際経済学セミナー, Mar. 2013, English, 一橋大学, 一橋大学, Domestic conference
    [Invited]
    Invited oral presentation

  • Learning by Doing and Fragmentation
    MA Yan
    the 10th Biennial Pacific Rim Conference, Mar. 2013, English, Keio University, Domestic conference
    Oral presentation

  • Coordination Cost, Product Quality and Product Cycle
    Ma Yan
    The Fifth Annual Meeting of Asia and Pacific Trade Seminars, Jun. 2009, English, Asia and Pacific Trade Seminars, University of Hong Kong, International conference
    Oral presentation

  • Communication cost, Product Quality and Product Cycle
    Ma Yan
    The First Conference of International Economics and Finance Society China, May 2009, English, International Economics and Finance Society China, University of International Business and Economics, International conference
    Oral presentation

  • Wage Inequality vs Welfare Inequality
    MA Yan
    Midwest International Economics Group Fall 2007 Meeting, Nov. 2007, English, University of Michigan, International conference
    Oral presentation

  • Wage Inequality vs Welfare Inequality
    MA Yan, DEI FUMIO
    日本経済学会, Oct. 2007, Japanese, 日本経済学会, 日本大学, Domestic conference
    Oral presentation

  • Quality Goods, Trade Liberalization and Wage Inequality
    Ma Yan
    Asia Pacific Trade Seminars, Jul. 2006, English, -, -, International conference
    Oral presentation

  • Vertical Production Chain, Trade and Tariffs in a Two-Factor Model
    Ma Yan
    Kobe COE Advanced Economic Study Series (11th), Jun. 2005, English, 神戸大学経済経営研究所, Kobe University, Domestic conference
    Oral presentation

■ Affiliated Academic Society
  • International Economics and FInance Society Japan

  • 日本経済学会

■ Research Themes
  • 気候政策と国際貿易の国際協調に資する国境炭素調整措置の制度設計
    蓬田 守弘, 神事 直人, 東田 啓作, 馬 岩, 武智 一貴, 阪本 浩章
    日本学術振興会, 科学研究費助成事業, 基盤研究(B), 上智大学, 01 Apr. 2024 - 31 Mar. 2028

  • R&D of Multinational Corporations and Global Sourcing of Intermediate Goods
    馬 岩, 牧岡 亮, 朱 連明, 古澤 泰治, 荒 知宏
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Kobe University, 01 Apr. 2024 - 31 Mar. 2028

  • Globalization and Research Development
    馬 岩, 杉田 洋一, 古澤 泰治, 朱 連明, 荒 知宏
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Kobe University, Apr. 2020 - Mar. 2024, Principal investigator

  • Analysis on the changes in the production process and the technological progress in the global economy
    MA YAN
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Fund for the Promotion of Joint International Research (Fostering Joint International Research), Fund for the Promotion of Joint International Research (Fostering Joint International Research), Kobe University, Apr. 2018 - Mar. 2021, Principal investigator
    In this project, we firstly study how task sensitivity and task complementarity affect the formation of global supply chain in a setup of two countries with different skill levels and many tasks (N discrete tasks or a continuum of tasks). In addition, we investigate how the changes in task sensitivity due to technological progress affect the global supply chain and income distributions. Next, we develop a framework where there are a continuum of workers who differ in their skill levels and the production involves two tasks with one task more skill sensitive than the other. Two workers form a team with each worker performing one task, which allow us to examine how the distribution of skills affect the matching of workers and the tasks in which they are assigned. Moreover, we explore how offshoring affects the the matching patterns and income distributions.

  • MA YAN
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Kobe University, Apr. 2016 - Mar. 2020, Principal investigator
    In this study, we developed a model of global supply chain to investigate how globalization affects global supply chains and make use of the data from international input-output table to empirically test our theoretical results. In addition, we theoretically and empirically analyzed the spillover effect of foreign direct investments and firms' decisions on whether to perform foreign direct investments. Moreover, we theoretically examined the effects of distributions of human capital on task trade, wages and welfare, and provided a prediction for future empirical study. Finally, we theoretically investigated the effects of the fragmentation of production processes internationally on the earth environment and also examined the effects of environment protection polices on environment and welfare.

  • Studies on Trade, FDI, and the Environment by a Micro-level Approach
    Jinji Naoto, MA Yan
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Kyoto University, 01 Apr. 2015 - 31 Mar. 2019
    In this study, we analyze the relationship between international trade, foreign direct investment (FDI), and the environmental problems. Using firm-level data, we examine how firm's export behavior affects its emission of greenhouse gases and energy efficiency. We also empirically investigate how FDI affects firms' environmental behavior within the same industry and the upstream/downstream industries in the host country through environmental spillovers. Moreover, we conduct various theoretical analyses by game theoretic models and dynamic models on border tax adjustments as a climate change policy, the formation of international environmental treaties, and market competition and trade for eco-goods and second-hand goods. Finally, we empirically examine factors to affect the consumers' demand for second-hand goods, based on the data obtained from experiments.

  • Dynamic Modeling of Consumer Purchase Behavior: Based on Web Crawling Data
    Li Zhen, ZHANG Jie, MA Yan, HUANG Lin, YADA Katsutoshi
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Research Activity Start-up, 28 Aug. 2015 - 31 Mar. 2017
    There is much evidence that customer reviews are important to merchants' sales. However, little is deeply discussed about how much the online reviews affect sales, and the validity of the influence also lacks supports of empirical studies. This study posits that sales effects of customer reviews are different by market structure.
    We propose a Bayesian statistical model to study how customer reviews affect sales and the difference in its influence between two types of merchants, market-place and self-conducted stores. The data in this study are retrieved by using Web Crawling technology. The findings suggest that (1) sales effects of review volume will be attenuates by the information of sales outcomes in previous period, (2) compared with self-conducted stores, the volume of customer reviews seem more effective on sales for merchants in market-place, and (3) the effects of review valence on sales are also somewhat stronger for market-place stores than it for self-conducted stores.

  • MA YAN
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Kobe University, Apr. 2012 - Mar. 2016, Principal investigator
    This research project explores the engines of economic growth in both developed and developing countries. More specifically, I have investigated the following topics: (1) The impacts of the distribution of human capital on economic growth and income distribution in developed countries; (2) The timing of an innovating firm to relocate the production of a new product from the developed country to the developing country, and the interaction between the production location and the rate of quality improvement; (3) The impacts of two types of knowledge linkages on the internationally fragmented production process and global welfare, respectively; (4) The impacts of task characteristics on the internationally fragmented production process. In dealing with each topic, I developed a specific trade model with some new features that have not been considered in the existing literature. Owing to these new features, I successfully obtained some findings that would contribute to the literature.

  • 生 産プロセスの国際的分割に関する動 学的理論研究
    公益財団法人 二十一世紀文化学術財団 (木川田記念財団), 神戸大学, 2013 - 2014

  • 国際化（研究）「プロダクト･サイクルに関する理論的研究」
    馬 岩
    2008, Principal investigator
    Competitive research funding

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