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Unobservable savings, risk sharing and default in the financial system

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  • Panetti, Ettore

Abstract

In the present paper, I analyze how unobservable savings affect risk sharing and bankruptcy decisions in the financial system. I extend the Diamond and Dybvig (1983) model of financial intermediation to an environment with heterogeneous intermediaries, aggregate uncertainty and agents' hidden borrowing and lending. I demonstrate three results. First, unobservability imposes a burden on financial intermediaries, that in equilibrium are not able to offer a banking contract that balances insurance and incentive motivations. Second, unobservable markets do induce default, but only as long as insurance markets are incomplete. Therefore, their presence is not a rationale for government intervention on bankruptcy via "resolution regimes". Third, even in case of complete markets the competitive equilibrium is inefficient, and a simple tier-1 capital ratio similar to the one proposed in the Basel III Accord implements the efficient allocation.

Suggested Citation

  • Panetti, Ettore, 2011. "Unobservable savings, risk sharing and default in the financial system," MPRA Paper 29542, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:29542
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    References listed on IDEAS

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    1. Panetti, Ettore, 2011. "Financial liberalization and contagion with unobservable savings," MPRA Paper 29540, University Library of Munich, Germany.
    2. Franklin Allen & Douglas Gale, 2004. "Financial Intermediaries and Markets," Econometrica, Econometric Society, vol. 72(4), pages 1023-1061, July.
    3. Pozsar, Zoltan & Adrian, Tobias & Ashcraft, Adam B. & Boesky, Hayley, 2013. "Shadow banking," Economic Policy Review, Federal Reserve Bank of New York, issue Dec, pages 1-16.
      • Zoltan Pozsar & Tobias Adrian & Adam B. Ashcraft & Hayley Boesky, 2010. "Shadow banking," Staff Reports 458, Federal Reserve Bank of New York.
    4. Emmanuel Farhi & Jean Tirole, 2012. "Collective Moral Hazard, Maturity Mismatch, and Systemic Bailouts," American Economic Review, American Economic Association, vol. 102(1), pages 60-93, February.
    5. Emmanuel Farhi & Mikhail Golosov & Aleh Tsyvinski, 2009. "A Theory of Liquidity and Regulation of Financial Intermediation," Review of Economic Studies, Oxford University Press, vol. 76(3), pages 973-992.
    6. Gorton, Gary, 1988. "Banking Panics and Business Cycles," Oxford Economic Papers, Oxford University Press, vol. 40(4), pages 751-781, December.
    7. Viral V. Acharya & Hamid Mehran & Anjan V. Thakor, 2010. "Caught between Scylla and Charybdis? Regulating bank leverage when there is rent seeking and risk shifting," Working Paper 1024, Federal Reserve Bank of Cleveland.
    8. Narayana R. Kocherlakota, 2010. "The New Dynamic Public Finance," Economics Books, Princeton University Press, edition 1, number 9222, June.
    9. Laurence Ales & Pricila Maziero, "undated". "Non-exclusive Dynamic Contracts, Competition, and the Limits of Insurance," GSIA Working Papers 2010-E59, Carnegie Mellon University, Tepper School of Business.
    10. Harold L. Cole & Narayana R. Kocherlakota, 2001. "Efficient Allocations with Hidden Income and Hidden Storage," Review of Economic Studies, Oxford University Press, vol. 68(3), pages 523-542.
    11. Mikhail Golosov & Aleh Tsyvinski, 2007. "Optimal Taxation with Endogenous Insurance Markets," The Quarterly Journal of Economics, Oxford University Press, vol. 122(2), pages 487-534.
    12. Panetti, Ettore, 2014. "Financial liberalization and contagion with unobservable savings," International Review of Financial Analysis, Elsevier, vol. 36(C), pages 20-35.
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    1. Panetti, Ettore, 2011. "Financial liberalization and contagion with unobservable savings," MPRA Paper 29540, University Library of Munich, Germany.

    More about this item

    Keywords

    financial intermediation; hidden savings; bankruptcy; insurance; optimal regulation;

    JEL classification:

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

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