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Aggregate Bank Capital and Credit Dynamics

Author

Listed:
  • Nataliya Klimenko

    (University of Zurich)

  • Sebastian Pfeil

    (University of Bonn)

  • Jean-Charles Rochet

    (University of Zurich, University of Toulouse I and Swiss Finance Institute)

  • Gianni De Nicolo

    (International Monetary Fund and CESifo)

Abstract

We develop a novel dynamic model of banking showing that aggregate bank capital is an important determinant of bank lending. In our model commercial banks finance their loans with deposits and equity, while facing equity issuance costs. Because of this financial friction, banks build equity buffers to absorb negative shocks. Aggregate bank capital determines the dynamics of lending. Notably, the equilibrium loan rate is a decreasing function of aggregate capitalization. The competitive equilibrium is constrained inefficient, because banks do not internalize the consequences of individual lending decisions for the future loss-absorbing capacity of the banking sector. In particular, we find that unregulated banks lend too much. Imposing a minimum capital ratio helps tame excessive lending, which enhances stability of the banking system.

Suggested Citation

  • Nataliya Klimenko & Sebastian Pfeil & Jean-Charles Rochet & Gianni De Nicolo, 2016. "Aggregate Bank Capital and Credit Dynamics," Swiss Finance Institute Research Paper Series 16-42, Swiss Finance Institute.
    • Handle: RePEc:chf:rpseri:rp1642
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    File URL: http://ssrn.com/abstract=2801995
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    Citations

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    Cited by:

    1. Modena, Andrea, 2020. "Recapitalization, bailout, and long-run welfare in a dynamic model of banking," SAFE Working Paper Series 292, Leibniz Institute for Financial Research SAFE.
    2. Vadim Elenev & Tim Landvoigt & Stijn Van Nieuwerburgh, 2021. "A Macroeconomic Model With Financially Constrained Producers and Intermediaries," Econometrica, Econometric Society, vol. 89(3), pages 1361-1418, May.
    3. Tong Zhang, 2019. "Haircut Cycles," 2019 Meeting Papers 124, Society for Economic Dynamics.
    4. Kai Ding & Enoch Hill & David Perez-Reyna, 2021. "Optimal capital requirements with noisy signals on banking risk," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 71(4), pages 1649-1687, June.
    5. Chabakauri, Georgy & Han, Brandon Yueyang, 2020. "Collateral constraints and asset prices," Journal of Financial Economics, Elsevier, vol. 138(3), pages 754-776.
    6. Borovicka, J. & Hansen, L.P., 2016. "Term Structure of Uncertainty in the Macroeconomy," Handbook of Macroeconomics, in: J. B. Taylor & Harald Uhlig (ed.), Handbook of Macroeconomics, edition 1, volume 2, chapter 0, pages 1641-1696, Elsevier.
    7. Celso Brunetti & Agostino Capponi & Christoph Frei, 2017. "Managing Counterparty Risk in OTC Markets," Finance and Economics Discussion Series 2017-083, Board of Governors of the Federal Reserve System (U.S.).
    8. Calisse, Frank, 2019. "The impact of long-range dependence in the capital stock on interest rate and wealth distribution," VfS Annual Conference 2019 (Leipzig): 30 Years after the Fall of the Berlin Wall - Democracy and Market Economy 203591, Verein für Socialpolitik / German Economic Association.
    9. Ye Li & Simon Mayer & Simon Mayer, 2021. "Money Creation in Decentralized Finance: A Dynamic Model of Stablecoin and Crypto Shadow Banking," CESifo Working Paper Series 9260, CESifo.
    10. Andrea Modena, 2020. "Recapitalization, Bailout, and Long-run Welfare in a Dynamic Model of Banking," Working Papers 2020:23, Department of Economics, University of Venice "Ca' Foscari".
    11. Enoch Hill & David Perez-Reyna, 2016. "Macroprudential Regulation and Misallocation," Documentos CEDE 14974, Universidad de los Andes, Facultad de Economía, CEDE.
    12. Benigno, Pierpaolo & Robatto, Roberto, 2019. "Inefficiency and Regulation of Private Liquidity," CEPR Discussion Papers 13631, C.E.P.R. Discussion Papers.
    13. Christoph Bertsch & Mike Mariathasan, 2021. "Optimal bank leverage and recapitalization in crowded markets," BIS Working Papers 923, Bank for International Settlements.
    14. Tchakoute Tchuigoua, Hubert & Soumaré, Issouf & Hessou, Hélyoth T.S., 2020. "Lending and business cycle: Evidence from microfinance institutions," Journal of Business Research, Elsevier, vol. 119(C), pages 1-12.
    15. Tetiana Davydiuk, 2017. "Dynamic Bank Capital Requirements," 2017 Meeting Papers 1328, Society for Economic Dynamics.

    More about this item

    Keywords

    macro-model with a banking sector; aggregate bank capital; pecuniary externality; capital requirements;
    All these keywords.

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • F44 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Business Cycles
    • 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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