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Central Banks and the Financial System

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  • Francesco Giavazzi
  • Alberto Giovannini

Abstract

Financial systems are inherently fragile because of the very function which makes them valuable: liquidity transformation. Thus regulatory reforms, as urgent and desirable as they are, will definitely strengthen the financial system and decrease the risk of liquidity crises, but they will never eliminate it. This leaves monetary policy with a very important task. In a framework that recognizes the interactions between monetary policy and liquidity transformation 'optimal' monetary policy would consist of a modified Taylor rule in which the real rate reflects the possibility of liquidity crises and recognizes the possibility that liquidity transformation gets ubsidized. Failure to recognize this point risks leading the economy into a low interest rate trap: low interest rates induce too much risk taking and increase the probability of crises. These crises, in turn, require low interest rates to maintain the ?nancial system alive. Raising rates becomes extremely difficult in a severely weakened financial system, so monetary authorities remain stuck in a low interest rates trap. This seems a reasonable description of the situation we have experienced throughout the past decade.

Suggested Citation

  • Francesco Giavazzi & Alberto Giovannini, 2011. "Central Banks and the Financial System," Working Papers 425, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
    • Handle: RePEc:igi:igierp:425
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    References listed on IDEAS

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    1. Jean Tirole, 2011. "Illiquidity and All Its Friends," Journal of Economic Literature, American Economic Association, vol. 49(2), pages 287-325, June.
    2. Bengt Holmstrom & Jean Tirole, 1998. "Private and Public Supply of Liquidity," Journal of Political Economy, University of Chicago Press, vol. 106(1), pages 1-40, February.
    3. Douglas W. Diamond & Philip H. Dybvig, 2000. "Bank runs, deposit insurance, and liquidity," Quarterly Review, Federal Reserve Bank of Minneapolis, vol. 24(Win), pages 14-23.
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    1. Masciandaro, Donato & Romelli, Davide, 2015. "Ups and downs of central bank independence from the Great Inflation to the Great Recession: theory, institutions and empirics," Financial History Review, Cambridge University Press, vol. 22(3), pages 259-289, December.
    2. Abdelkader Aguir, 2017. "Stability and Economic Performance of the Inflation-Targeting Policy Facing the Crisis," International Journal of Economics and Financial Issues, Econjournals, vol. 7(4), pages 448-452.
    3. Abdelkader Aguir, 2017. "Stability and Economic Performance of the Inflation-Targeting Policy Facing the Crisis," Post-Print hal-03791276, HAL.
    4. Bonner, C. & Eijffinger, S.C.W., 2012. "The Impact of the LCR on the Interbank Money Market," Other publications TiSEM 62237388-9a7c-458c-8608-9, Tilburg University, School of Economics and Management.
    5. Donato Masciandaro & Davide Romelli, 2019. "Behavioral Monetary Policymaking: Economics, Political Economy and Psychology," World Scientific Book Chapters, in: Behavioral Finance The Coming of Age, chapter 9, pages 285-329, World Scientific Publishing Co. Pte. Ltd..
    6. Dalla Pellegrina, L. & Masciandaro, D. & Pansini, R.V., 2013. "The central banker as prudential supervisor: Does independence matter?," Journal of Financial Stability, Elsevier, vol. 9(3), pages 415-427.

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