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Complete Markets, Enforcement Constraints and Intermediation

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  • Eva Carceles-Poveda
  • Arpad Abraham

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 Economic Dynamics in its series 2005 Meeting Papers with number 661.

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Date of creation: 2005
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Handle: RePEc:red:sed005:661

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Keywords: Production Economies; Enforcement Constraints; Financial Intermediation;

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  1. 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.
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  4. Patrick J. Kehoe & Fabrizio Perri, 2003. "Competitive equilibria with limited enforcement," Staff Report 307, Federal Reserve Bank of Minneapolis.
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  8. Ábrahám, Árpád & Cárceles-Poveda, Eva, 2010. "Endogenous trading constraints with incomplete asset markets," Journal of Economic Theory, Elsevier, vol. 145(3), pages 974-1004, 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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