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Bank Competition and Financial Stability : A Comparative Study of Mutual Savings Banks and Commercial Banks in Korea

Author

Listed:
  • Jin Q Jeon

    () (Dongguk Business School, Dongguk University)

  • Kwang Kyu Lim

    () (Early Warning Team, Marcroprudential Analysis Department, the Bank of Korea)

Abstract

This study examines the influence of competition and concentration on financial stability in the Korean financial industry. Specifically, we test two alternative hypotheses: the competition-fragility hypothesis versus competition-stability hypothesis by using the sample of two different types of banks -- Korean commercial banks and mutual savings banks (MSBs). Using measures for the competitive level and financial stability such as the Boone Index and Z--score, we find that the relationship between competition and stability varies depending on the characteristics of financial institutions. In commercial banks as well as MSBs, however, our estimated Boone Indices suggest that competition was much higher before the recent global financial crisis, but after then it has gradually declined. As Boyd and De Nicolo (2005) suggest, competition has a positive effect on the stability of MSBs with greater business risk and weaker corporate governance. In reality, higher concentration and risk-shifting effects in a less competitive loan market have increased default risks of some MSBs since the recent crisis. Commercial banks, on the contrary, tend to be less stable when they face competition pressure while the relationship is nonlinear.

Suggested Citation

  • Jin Q Jeon & Kwang Kyu Lim, 2013. "Bank Competition and Financial Stability : A Comparative Study of Mutual Savings Banks and Commercial Banks in Korea," Working Papers 2013-18, Economic Research Institute, Bank of Korea.
  • Handle: RePEc:bok:wpaper:1318
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    References listed on IDEAS

    as
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    7. Jan Boone, 2008. "A New Way to Measure Competition," Economic Journal, Royal Economic Society, vol. 118(531), pages 1245-1261, August.
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    1. repec:eee:ememar:v:38:y:2019:i:c:p:310-325 is not listed on IDEAS
    2. repec:eee:pacfin:v:48:y:2018:i:c:p:144-161 is not listed on IDEAS
    3. Zhongchen Song & Tom Coupé & W. Robert Reed, 2019. "The One-Child Policy and Chinese Saving Behavior," Working Papers in Economics 19/08, University of Canterbury, Department of Economics and Finance.
    4. Samangi Bandaranayake & Kuntal K. Das & W. Robert Reed, 2018. "A Replication of “Bank Competition and Financial Stability: Much Ado About Nothing?” (Journal of Economic Surveys, 2016)," Working Papers in Economics 18/18, University of Canterbury, Department of Economics and Finance.
    5. repec:eee:jebusi:v:96:y:2018:i:c:p:15-41 is not listed on IDEAS

    More about this item

    Keywords

    Bank Competition; Risk-taking; Bank Stability; Risk Shifting;

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G23 - Financial Economics - - Financial Institutions and Services - - - Non-bank Financial Institutions; Financial Instruments; Institutional Investors
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance

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