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Banking Regulation and Financial Accelerators: A One-Period Model with Unlimited Liability

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  • Bühler, Wolfgang
  • Koziol, Christian
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    Abstract

    In this paper, we analyze the consequences of bank regulation on the size of the real sector. In particular, we address the question whether exogenous shocks on the return-risk characteristics of the technology and on the equity of the real sector are intensified or damped by a value-at-risk constraint on the credit portfolio of a bank. We consider a one-period model with three risk-averse agents, an investor, a bank, and a firm. The size of the markets for deposits and loans, their prices and the size of the real sector are endogenous. We find that stricter regulation results in higher loan rates, lower deposit rates, and lower activity in the real sector. A negative shock on the return-risk position or on the risk buffer of the real sector reduces the activities in the economy. Surprisingly, the sensitivity of the real sector's activities on negative shocks is smaller for a regulated financial sector than for a non-regulated one. Therefore, in our economy, imperfections in the financial sector do not result in procyclical or acceleration effects.

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    Bibliographic Info

    Paper provided by Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich in its series Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems with number 17.

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    Date of creation: Jun 2004
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    Handle: RePEc:trf:wpaper:17

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    1. Ben S. Bernanke & Alan S. Blinder, 1988. "Credit, Money, and Aggregate Demand," NBER Working Papers 2534, National Bureau of Economic Research, Inc.
    2. Jean-Pierre Zigrand & Jon Danielsson, 2001. "What Happens When You Regulate Risk? Evidence from a Simple Equilibrium Model," FMG Discussion Papers dp393, Financial Markets Group.
    3. Blum, Jurg & Hellwig, Martin, 1995. "The macroeconomic implications of capital adequacy requirements for banks," European Economic Review, Elsevier, vol. 39(3-4), pages 739-749, April.
    4. Bernanke, Ben S, 1983. "Nonmonetary Effects of the Financial Crisis in Propagation of the Great Depression," American Economic Review, American Economic Association, vol. 73(3), pages 257-76, June.
    5. Ben Bernanke & Mark Gertler & Simon Gilchrist, 1998. "The Financial Accelerator in a Quantitative Business Cycle Framework," NBER Working Papers 6455, National Bureau of Economic Research, Inc.
    6. Claudio Borio & Craig Furfine & Philip Lowe, 2001. "Procyclicality of the financial system and financial stability: issues and policy options," BIS Papers chapters, in: Bank for International Settlements (ed.), Marrying the macro- and micro-prudential dimensions of financial stability, volume 1, pages 1-57 Bank for International Settlements.
    7. Rochet, Jean-Charles, 1992. "Capital requirements and the behaviour of commercial banks," European Economic Review, Elsevier, vol. 36(5), pages 1137-1170, June.
    8. Repullo, Rafael & Suarez, Javier, 2003. "Loan Pricing Under Basel Capital Requirements," CEPR Discussion Papers 3917, C.E.P.R. Discussion Papers.
    9. Koehn, Michael & Santomero, Anthony M, 1980. " Regulation of Bank Capital and Portfolio Risk," Journal of Finance, American Finance Association, vol. 35(5), pages 1235-44, December.
    10. Con Keating & Hyun Song Shin & Charles Goodhart & Jon Danielsson, 2001. "An Academic Response to Basel II," FMG Special Papers sp130, Financial Markets Group.
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