Incomplete Markets, Transitory Shocks, and Welfare
AbstractWhile equilibrium allocations in models with incomplete markets are generally not Pareto-efficient, it is often argued that quantitative welfare losses from missing assets are small when time-horizons are long and shocks are transitory. In this paper we use a computational analyses to show that even in the simplest infinite horizon model without aggregate uncertainty welfare losses can be substantial. Furthermore, we show that in this model, welfare losses form incomplete markets to not necessarily disappear when agents become more patient. We identify two scenarios under which this is the case. First, when the economic model is calibrated to higher frequency data, the persistence of negative income shocks must increase as well. In this case, the welfare loss of incomplete markets remains constant even as agents' rate of time preference B>1. Secondly, for a fixed specification of endowment processes, an exogenous decrease of agents' rate of discounting should not affect their abilities to borrow. With exogenous borrowing constraints, the incomplete markets welfare does not converge to complete markets welfare.
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Bibliographic InfoPaper provided by Northwestern University, Center for Mathematical Studies in Economics and Management Science in its series Discussion Papers with number 1285.
Date of creation: Feb 2000
Date of revision:
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Postal: Center for Mathematical Studies in Economics and Management Science, Northwestern University, 580 Jacobs Center, 2001 Sheridan Road, Evanston, IL 60208-2014
Web page: http://www.kellogg.northwestern.edu/research/math/
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Other versions of this item:
- Felix Kubler & Karl Schmedders, 2001. "Incomplete Markets, Transitory Shocks, and Welfare," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 4(4), pages 747-766, October.
- Felix Kubler & Karl Schmedders, 2000. "Incomplete Markets, Transitory Shocks and Welfare," Levine's Working Paper Archive 2133, David K. Levine.
- Felix Kubler & Karl Schmedders, 2000. "Incomplete Markets, Transitory Shocks And Welfare," Computing in Economics and Finance 2000 130, Society for Computational Economics.
- D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
- D58 - Microeconomics - - General Equilibrium and Disequilibrium - - - Computable and Other Applied General Equilibrium Models
- D60 - Microeconomics - - Welfare Economics - - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2000-10-05 (All new papers)
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