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WU Yichang大学院経営学研究科 経営学専攻助教
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- 2025年03月, 大阪府商工労働部『産開研論集』大阪府におけるインバウンドの回復と未来
- Elsevier BV, 2024年10月, Pacific-Basin Finance Journal, 102554 - 102554[査読有り]研究論文（学術雑誌）
- Abstract This article examines the relationship between bank diversification and performance in the Japanese banking sector. We use panel data from 141 banks over the period 2000–2022 to investigate whether banks can improve profitability and reduce risk through diversification strategies. Our evidence shows that diversification can improve bank profitability at the cost of a decline in net interest margins, suggesting banks are using the interest business as a loss leader to promote other business lines. We find that asset diversification has a risk‐reducing effect, which supports the portfolio hypothesis. Some evidence also implies that there is a more complex nonlinear relationship. This can be partly attributed to bank type, as the diversification effects vary across different types of banks. Furthermore, the decomposition of non‐interest income reveals that fees and commissions negatively influence return on assets while simultaneously reducing bank risk.Wiley, 2024年09月, International Review of Finance, 24(3) (3), 449 - 492[査読有り]研究論文（学術雑誌）
- 日本ファイナンス学会第33回大会, 2025年06月How does the market value bank complexity: Evidence from Japan口頭発表（一般）
- 日本金融学会2023秋季大会, 2023年09月Economies of scope in the Japanese banking industry
- 日本ファイナンス学会第31回大会, 2023年05月Economies of scope in the Japanese banking industry口頭発表（一般）
- 日本ファイナンス学会第30回大会, 2022年06月Bank diversification and performance: Empirical evidence from Japan口頭発表（一般）