Social security and equity investment in an economy with financial intermediaries and costly monitoring
This paper aims at extending the analysis of the efficiency of equilibria in an OLG framework with asymmetric information. I study the stationary states of an economy where consumers, firms and financial intermediaries are at work. The economy is affected by ex post moral hazard due to costly state verification; because of this inefficiency in the private financial system, a result different from the Samuelson-Diamond conclusions about the Pareto ranking of different equilibria is derived: the introduction of social security is proved to be Pareto improving in a market economy even in cases in which the economy is dynamically efficient. Moreover, I show that market outcomes can fail to achieve the Constrained Pareto Optimal allocation.
|Date of creation:||Apr 1996|
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- Stephen D. Williamson, 1987.
"Costly Monitoring, Loan Contracts, and Equilibrium Credit Rationing,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 102(1), pages 135-145.
- Stephen D. Williamson, 1984. "Costly Monitoring, Loan Contracts and Equilibrium Credit Rationing," Working Papers 572, Queen's University, Department of Economics.
- Paul A. Samuelson, 1958. "An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money," Journal of Political Economy, University of Chicago Press, vol. 66, pages 467-467.
- Stiglitz, Joseph E & Weiss, Andrew, 1981. "Credit Rationing in Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 71(3), pages 393-410, June.
- Olivier Jean Blanchard & Stanley Fischer, 1989. "Lectures on Macroeconomics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262022834, January.
- Reichlin, Pietro & Siconolfi, Paolo, 1996. "The role of social security in an economy with asymmetric information and financial intermediaries," Journal of Public Economics, Elsevier, vol. 60(2), pages 153-175, May.
- Bernanke, Ben & Gertler, Mark, 1989. "Agency Costs, Net Worth, and Business Fluctuations," American Economic Review, American Economic Association, vol. 79(1), pages 14-31, March.
- Azariadis Costas & Smith Bruce D., 1993. "Adverse Selection in the Overlapping Generations Model: The Case of Pure Exchange," Journal of Economic Theory, Elsevier, vol. 60(2), pages 277-305, August. Full references (including those not matched with items on IDEAS)
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