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Optimal Bank Regulation In the Presence of Credit and Run-Risk

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Listed:
  • Anil K. Kashyap
  • Dimitrios P. Tsomocos
  • Alexandros P. Vardoulakis

Abstract

We modify the Diamond and Dybvig (1983) model so that, besides offering liquidity services to depositors, banks also raise equity funding, make loans that are risky, and can invest in safe, liquid assets. The bank and its borrowers are subject to limited liability. When profitable, banks monitor borrowers to ensure that they repay loans. Depositors may choose to run based on conjectures about the available resources for people withdrawing early and beliefs about banks’ monitoring. We model the run decision by solving a novel global game. We find that banks opt for a more deposit-intensive capital structure than a social planner would choose. The privately chosen asset portfolio can be more or less lending-intensive, while the level of lending can also be higher or lower depending on a planner’s preferences between liquidity provision and credit extension. To correct these three distortions, a package of three regulations is warranted.

Suggested Citation

  • Anil K. Kashyap & Dimitrios P. Tsomocos & Alexandros P. Vardoulakis, 2020. "Optimal Bank Regulation In the Presence of Credit and Run-Risk," NBER Working Papers 26689, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:26689
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    Cited by:

    1. Kristian Blickle & Markus Brunnermeier & Stephan Luck, 2020. "Micro-evidence from a System-wide Financial Meltdown: The German Crisis of 1931," Working Papers 275, Princeton University, Department of Economics, Center for Economic Policy Studies..
    2. Kristian Blickle & Markus K. Brunnermeier & Stephan Luck, 2022. "Who Can Tell Which Banks Will Fail?," NBER Working Papers 29753, National Bureau of Economic Research, Inc.
    3. Carletti, Elena & Leonello, Agnese & Marquez, Robert, 2023. "Loan guarantees, bank underwriting policies and financial stability," Journal of Financial Economics, Elsevier, vol. 149(2), pages 260-295.
    4. Lukas Altermatt & Hugo van Buggenum & Dr. Lukas Voellmy, 2022. "Systemic bank runs without aggregate risk: how a misallocation of liquidity may trigger a solvency crisis," Working Papers 2022-10, Swiss National Bank.
    5. Gomez, Fabiana & Vo, Quynh-Anh, 2020. "Liquidity management, fire sale and liquidity crises in banking: the role of leverage," Bank of England working papers 894, Bank of England.
    6. Hibiki Ichiue & Jean-Guillaume Sahuc & Yasin Mimir & Jolan Mohimont & Kalin Nikolov & Olivier de Bandt & Sigrid Roehrs & Valério Scalone & Michael Straughan & Bora Durdu, 2022. "Assessing the Impact of Basel III: Evidence from Structural Macroeconomic Models," Working Papers hal-04159816, HAL.
    7. Lartey, Theophilus & James, Gregory A. & Danso, Albert, 2021. "Interbank funding, bank risk exposure and performance in the UK: A three-stage network DEA approach," International Review of Financial Analysis, Elsevier, vol. 75(C).
    8. Raphaël Cardot-Martin & Fabien Labondance & Catherine Refait-Alexandre, 2022. "Capital ratios and banking crises in the European Union," International Economics, CEPII research center, issue 172, pages 389-402.
    9. Skander Van den Heuvel, 2019. "The Welfare Effects of Bank Liquidity and Capital Requirements," 2019 Meeting Papers 325, Society for Economic Dynamics.
    10. Natanael Waraney Gerald Massie & Chaikal Nuryakin, 2020. "When Prime Depositors Run On The Banks: A Behavioral Approach," Bulletin of Monetary Economics and Banking, Bank Indonesia, vol. 23(1), pages 139-152.
    11. Gersbach, Hans & Haller, Hans & Zelzner, Sebastian, 2023. "Enough liquidity with enough capital - And vice versa?," CFS Working Paper Series 714, Center for Financial Studies (CFS).
    12. Manuel Amador & Javier Bianchi, 2021. "Bank Runs, Fragility, and Credit Easing," NBER Working Papers 29397, National Bureau of Economic Research, Inc.
    13. Santos, João A.C. & Suarez, Javier, 2019. "Liquidity standards and the value of an informed lender of last resort," Journal of Financial Economics, Elsevier, vol. 132(2), pages 351-368.
    14. de Bandt, Olivier & Lecarpentier, Sandrine & Pouvelle, Cyril, 2021. "Determinants of banks’ liquidity: A French perspective on interactions between market and regulatory requirements," Journal of Banking & Finance, Elsevier, vol. 124(C).
    15. Altermatt, Lukas & Wang, Zijian, 2021. "Oligopoly Banking, Risky Investment, and Monetary Policy," Economics Discussion Papers 30728, University of Essex, Department of Economics.
    16. Martínez, J-F. & Peiris, M.U. & Tsomocos, D.P., 2020. "Macroprudential policy analysis in an estimated DSGE model with a heterogeneous banking system: An application to Chile," Latin American Journal of Central Banking (previously Monetaria), Elsevier, vol. 1(1).

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    More about this item

    JEL classification:

    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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