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Regret theory and the banking firm: The optimal bank interest margin

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  • Wong, Kit Pong

Abstract

This paper examines the optimal bank interest margin, i.e., the spread between the loan rate and the deposit rate of a bank, when the bank is not only risk-averse but also regret-averse. Regret-averse preferences are characterized by a utility function that includes disutility from having chosen ex-post suboptimal alternatives. We show that the presence of regret aversion raises or lowers the optimal bank interest margin than the one chosen by the purely risk-averse bank, depending on whether the probability of default is below or above a threshold value, respectively. Regret aversion as such makes the bank less prudent and more prone to risk-taking when the probability of default is high, thereby adversely affecting the stability of the banking system.

Suggested Citation

  • Wong, Kit Pong, 2011. "Regret theory and the banking firm: The optimal bank interest margin," Economic Modelling, Elsevier, vol. 28(6), pages 2483-2487.
  • Handle: RePEc:eee:ecmode:v:28:y:2011:i:6:p:2483-2487
    DOI: 10.1016/j.econmod.2011.07.007
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    References listed on IDEAS

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    Citations

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    Cited by:

    1. Wong, Kit Pong, 2014. "Fixed versus variable rate loans under regret aversion," Economic Modelling, Elsevier, vol. 42(C), pages 140-145.
    2. Fujii, Yoichiro & Okura, Mahito & Osaki, Yusuke, 2016. "Regret, rejoicing, and mixed insurance," Economic Modelling, Elsevier, vol. 58(C), pages 126-132.
    3. Wong, Kit Pong, 2012. "Production and insurance under regret aversion," Economic Modelling, Elsevier, vol. 29(4), pages 1154-1160.
    4. Wong, Kit Pong, 2013. "Fixed versus variable rate loans under state-dependent preferences," Economic Modelling, Elsevier, vol. 31(C), pages 659-663.
    5. Broll, Udo & Welzel, Peter & Wong, Kit Pong, 2014. "Multinational firm, exchange rate risk and the impact of regret on trade," Dresden Discussion Paper Series in Economics 04/14, Technische Universität Dresden, Faculty of Business and Economics, Department of Economics.
    6. Udo Broll & Peter Welzel & Kit Pong Wong, 2016. "Regret theory and the competitive firm revisited," Eurasian Economic Review, Springer;Eurasia Business and Economics Society, vol. 6(3), pages 481-487, December.
    7. Broll, Udo & Eckwert, Bernhard & Eickhoff, Andreas, 2012. "Financial intermediation and endogenous risk in the banking sector," Economic Modelling, Elsevier, vol. 29(5), pages 1618-1622.
    8. Wong, Kit Pong, 2014. "Regret theory and the competitive firm," Economic Modelling, Elsevier, vol. 36(C), pages 172-175.
    9. Niu, Cuizhen & Guo, Xu & Wang, Tao & Xu, Peirong, 2014. "Regret theory and the competitive firm: A comment," Economic Modelling, Elsevier, vol. 41(C), pages 312-315.
    10. Tsai, Jeng-Yan & Hung, Wei-Ming, 2013. "Bank capital regulation in a cap option framework," International Review of Economics & Finance, Elsevier, vol. 25(C), pages 66-74.
    11. Broll, Udo & Welzel, Peter & Wong, Kit Pong, 2016. "The banking firm under ambiguity aversion," CEPIE Working Papers 01/16, Technische Universität Dresden, Center of Public and International Economics (CEPIE).
    12. Udo Broll & Anna Sobiech & Jack E. Wahl, 2012. "Banking Firm, Equity and Value at Risk," Contemporary Economics, University of Finance and Management in Warsaw, vol. 6(4), December.
    13. Lin, Jyh-Horng & Hung, Wei-Ming, 2013. "A barrier option framework for bank interest margin management under anticipatory regret aversion," Economic Modelling, Elsevier, vol. 33(C), pages 794-801.
    14. Tsai, Jeng-Yan, 2012. "Risk and regret aversions on optimal bank interest margin under capital regulation," Economic Modelling, Elsevier, vol. 29(6), pages 2190-2197.
    15. Tsai, Jeng-Yan, 2013. "Bank interest margin management based on a path-dependent Cobb–Douglas utility framework," Economic Modelling, Elsevier, vol. 35(C), pages 751-762.
    16. repec:gam:jijfss:v:6:y:2018:i:3:p:63-:d:155847 is not listed on IDEAS
    17. Chang, Chuen-Ping, 2014. "A barrier option framework for rescue package designs and bank default risks," Economic Modelling, Elsevier, vol. 38(C), pages 246-257.
    18. Udo Broll & Peter Welzel & Kit Wong, 2015. "Exchange Rate Risk and the Impact of Regret on Trade," Open Economies Review, Springer, vol. 26(1), pages 109-119, February.

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