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The determinants of interest margins and their effect on bank diversification: Evidence from Asian banks

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  • Lin, Jane-Raung
  • Chung, Huimin
  • Hsieh, Ming-Hsiang
  • Wu, Soushan

Abstract

An endogenous switching regression model is employed for this study, categorizing the banks into regimes of high and low degrees of diversification, with our results indicating that net interest margins can be less sensitive to fluctuations in bank risk factors for functionally diversified banks as compared to more specialized banks. In turn, this implies that by diversifying their income sources, these banks can reduce the shocks to net interest margins arising from idiosyncratic risk. Our results show that prior findings can hold when the banks are located in a regime with a low degree of diversification.

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  • Lin, Jane-Raung & Chung, Huimin & Hsieh, Ming-Hsiang & Wu, Soushan, 2012. "The determinants of interest margins and their effect on bank diversification: Evidence from Asian banks," Journal of Financial Stability, Elsevier, vol. 8(2), pages 96-106.
    • Handle: RePEc:eee:finsta:v:8:y:2012:i:2:p:96-106
    DOI: 10.1016/j.jfs.2011.08.001
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    2. Agapova, Anna & McNulty, James E., 2016. "Interest rate spreads and banking system efficiency: General considerations with an application to the transition economies of Central and Eastern Europe," International Review of Financial Analysis, Elsevier, vol. 47(C), pages 154-165.
    3. Ovi, Nafisa & Bose, Sudipta & Gunasekarage, Abeyratna & Shams, Syed, 2020. "Do the business cycle and revenue diversification matter for banks’ capital buffer and credit risk: Evidence from ASEAN banks," Journal of Contemporary Accounting and Economics, Elsevier, vol. 16(1).
    4. Jean-Pierre Gueyié & Alaa Guidara & Van Son Lai, 2018. "Banks? Non-Traditional Activities Under Regulatory Changes: Impact on Risk, Performance and Capital Adequacy," Working Papers 2018-003, Department of Research, Ipag Business School.
    5. Özcan IŞIK & Murat BELKE, 2017. "An Empirical Analysis of the Determinants of Net Interest Margins of Turkish Listed Banks: Panel Data Evidence from Post-Crisis Era," Sosyoekonomi Journal, Sosyoekonomi Society, issue 25(34).
    6. Trinugroho, Irwan & Agusman, Agusman & Tarazi, Amine, 2014. "Why have bank interest margins been so high in Indonesia since the 1997/1998 financial crisis?," Research in International Business and Finance, Elsevier, vol. 32(C), pages 139-158.
    7. Lee, Chien-Chiang & Hsieh, Meng-Fen & Yang, Shih-Jui, 2014. "The relationship between revenue diversification and bank performance: Do financial structures and financial reforms matter?," Japan and the World Economy, Elsevier, vol. 29(C), pages 18-35.
    8. Kiweu, Josephat Mboya, 2012. "Income diversification in the banking sector and earnings volatility: Evidence from Kenyan commercial banks," KBA Centre for Research on Financial Markets and Policy Working Paper Series 2, Kenya Bankers Association (KBA).
    9. Saona, Paolo, 2016. "Intra- and extra-bank determinants of Latin American Banks' profitability," International Review of Economics & Finance, Elsevier, vol. 45(C), pages 197-214.
    10. Kim, Hakkon & Batten, Jonathan A. & Ryu, Doojin, 2020. "Financial crisis, bank diversification, and financial stability: OECD countries," International Review of Economics & Finance, Elsevier, vol. 65(C), pages 94-104.
    11. Nguyen, Thach V.H. & Nguyen, Thai Vu Hong, 2022. "How do banks price liquidity? The role of market power," Global Finance Journal, Elsevier, vol. 53(C).
    12. Lee, Siew Peng & Masih, Mansur, 2017. "Determinants of banks’ margins: case of islamic and conventional banks: evidence from Malaysia based on GMM approach," MPRA Paper 112110, University Library of Munich, Germany.
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    15. Zied Saadaoui, 2018. "Dealing with High Bank Interest Margins in Tunisia: A Dynamic Panel Investigation," African Development Review, African Development Bank, vol. 30(4), pages 434-448, December.

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    More about this item

    Keywords

    Bank diversification; Interest margins; Endogenous switching model;
    All these keywords.

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • L25 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Performance

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