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Welfare effects of financial integration

Author

Listed:
  • Hartmann, Philipp
  • Grüner, Hans Peter
  • Fecht, Falko

Abstract

This paper compares four forms of inter-regional financial risk sharing: (i) segmentation, (ii) integration trough the secured interbank market, (iii) integration trough the unsecured interbank market, (iv) integration of retail markets. The secured interbank market is an optimal risk-sharing device when banks report liquidity needs truthfully. It allows diversification without the risk of cross-regional financial contagion. However, free-riding on the liquidity provision in this market restrains the achievable risk-sharing as the number of integrated regions increases. In too large an area this moral hazard problem becomes so severe that either unsecured interbank lending or, ultimately, the penetration of retail markets is preferable. Even though this deeper financial integration entails the risk of contagion it may be beneficial for large economic areas, because it can implement an efficient sharing of idiosyncratic regional shocks. Therefore, the enlargement of a monetary union, for example, extending the common interbank market might increase the benefits of also integrating retail banking markets through cross-border transactions or bank mergers.

Suggested Citation

  • Hartmann, Philipp & Grüner, Hans Peter & Fecht, Falko, 2007. "Welfare effects of financial integration," Discussion Paper Series 2: Banking and Financial Studies 2007,11, Deutsche Bundesbank.
    • Handle: RePEc:zbw:bubdp2:6154
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    File URL: https://www.econstor.eu/bitstream/10419/19770/1/200711dkp_b_.pdf
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    References listed on IDEAS

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    Cited by:

    1. Mutu, Simona & Breşfelean, Vasile Paul & Göndör, Mihaela, 2011. "The impact of the financial crisis on the interbank money markets behavior. Evidence from several CEE transition economies," MPRA Paper 42102, University Library of Munich, Germany.
    2. Pieterse-Bloem, M., 2011. "The effect of Emu on bond market integration and investor portfolio allocations," Other publications TiSEM 3c6ce80d-9260-424a-b889-b, Tilburg University, School of Economics and Management.
    3. Popov, Alexander & Ongena, Steven, 2011. "Interbank market integration, loan rates, and firm leverage," Journal of Banking & Finance, Elsevier, vol. 35(3), pages 544-559, March.
    4. Fecht, Falko & Grüner, Hans Peter & Hartmann, Philipp, 2012. "Financial integration, specialization, and systemic risk," Journal of International Economics, Elsevier, vol. 88(1), pages 150-161.
    5. Kleimeier, Stefanie & Sander, Harald, 2022. "Twenty years with the Euro: Eurozone banking market integration revisited," Economic Modelling, Elsevier, vol. 114(C).

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    More about this item

    Keywords

    Financial integration; interbank market; cross border lending; financial contagion;
    All these keywords.

    JEL classification:

    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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