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Complete Markets, Enforcement Constraints and Intermediation

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  • Arpad Abraham

    (University of Rochester)

  • Eva Carceles-Poveda

    (SUNY at Stony Brook)

Abstract

Alvarez and Jermann (2000) show that the constrained efficient allocations of endowment economies with complete markets and limited commitment can be decentralized with endogenous borrowing limits on the Arrow securities. In a model with capital accumulation, aggregate risk and competitive intermediaries, we show that such a decentralization is not possible unless one imposes an upper limit on the intermediaries' capital holdings. Since there is no empirical evidence of such restrictions, we also characterize the equilibrium with no capital accumulation constraints. We show that this allocation solves a similar system of equations to the one of the constrained optimal solution, a result which considerably simplifies the equilibrium computation. In addition, capital accumulation is higher in this case, since the intermediaries do not internalize that fact that a higher aggregate capital increases the incentives to default. Finally, this also implies that agents may enjoy a higher welfare in the long run in spite of the fact that this allocation is not constrained efficient

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Bibliographic Info

Paper provided by Society for Computational Economics in its series Computing in Economics and Finance 2006 with number 320.

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Date of creation: 04 Jul 2006
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Handle: RePEc:sce:scecfa:320

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Keywords: Complete markets; Enforcement Constraints; Intermediation;

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  1. S. Rao Aiyagari, 1993. "Uninsured idiosyncratic risk and aggregate saving," Working Papers 502, Federal Reserve Bank of Minneapolis.
  2. Patrick J. Kehoe & Fabrizio Perri, 2002. "International Business Cycles with Endogenous Incomplete Markets," Econometrica, Econometric Society, vol. 70(3), pages 907-928, May.
  3. Eva Carceles-Poveda & Daniele Coen-Pirani, 2009. "Shareholders' Unanimity With Incomplete Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 50(2), pages 577-606, 05.
  4. Patrick J. Kehoe & Fabrizio Perri, 2002. "Competitive Equilibria With Limited Enforcement," NBER Working Papers 9077, National Bureau of Economic Research, Inc.
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  7. Eva Carceles Poveda & Arpad Abraham, 2004. "Endogenous Trading Constraints with Incomplete Asset Markets," 2004 Meeting Papers 667, Society for Economic Dynamics.
  8. Narayana Kocherlakota, 2010. "Implications of Efficient Risk Sharing Without Commitment," Levine's Working Paper Archive 2053, David K. Levine.
  9. Albert Marcet & Ramon Marimon, 2011. "Recursive Contracts," CEP Discussion Papers dp1055, Centre for Economic Performance, LSE.
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  11. Hanno Lustig, 2001. "The Market Price of Aggregate Risk and the Wealth Distribution," Finance 0111004, EconWPA, revised 16 Nov 2001.
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  13. Thomas, Jonathan & Worrall, Tim, 1988. "Self-enforcing Wage Contracts," Review of Economic Studies, Wiley Blackwell, vol. 55(4), pages 541-54, October.
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  15. Tauchen, George & Hussey, Robert, 1991. "Quadrature-Based Methods for Obtaining Approximate Solutions to Nonlinear Asset Pricing Models," Econometrica, Econometric Society, vol. 59(2), pages 371-96, March.
  16. Eva Carceles-Poveda, 2003. "Capital Ownership under Market Incompleteness: Does it matter?," Computing in Economics and Finance 2003 228, Society for Computational Economics.
  17. Grossman, Sanford J & Stiglitz, Joseph E, 1977. "On Value Maximization and Alternative Objectives of the Firm," Journal of Finance, American Finance Association, vol. 32(2), pages 389-402, May.
  18. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "Stockholder Unanimity in Making Production and Financial Decisions," The Quarterly Journal of Economics, MIT Press, vol. 94(3), pages 543-66, May.
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Cited by:
  1. Krueger, Dirk & Perri, Fabrizio, 2011. "Public versus private risk sharing," Journal of Economic Theory, Elsevier, vol. 146(3), pages 920-956, May.
  2. Broer, Tobias, 2011. "The wrong shape of insurance? What cross-sectional distributions tell us about models of consumption-smoothing," CEPR Discussion Papers 8701, C.E.P.R. Discussion Papers.

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