Contestability and collateral in credit markets with adverse selection
The work discusses a basic proposition in the theory of competition in markets with adverse selection (Bester, 1985). By working out the sequence of market transactions, we show that the effectiveness of collateral in avoiding equilibrium rationing depends on an assumption of uncontestability of the loan market. If contestability is restored to its proper place, the separation of borrower by means of sufficient collateral does not impede the emergence of credit rationing, which results from a coordination failure among risk-neutral banks. As a consequence, even in a risk-neutral environment with suitable endowments, the use of collateral in credit contracts could not be a socially efficient screening-device. Our conclusion on rationing does not stand in contrast with the general result of Gale (1996).
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- Douglas Gale, 1996.
"Equilibria and Pareto optima of markets with adverse selection (*),"
Springer, vol. 7(2), pages 207-235.
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- Yuk-Shee Chan & Anjan V. Thakor, 2004.
"Collateral and Competitive Equilibria with Moral Hazard and Private Information,"
- Chan, Yuk-Shee & Thakor, Anjan V, 1987. " Collateral and Competitive Equilibria with Moral Hazard and Private Information," Journal of Finance, American Finance Association, vol. 42(2), pages 345-63, June.
- Jaffee, Dwight & Stiglitz, Joseph, 1990. "Credit rationing," Handbook of Monetary Economics, in: B. M. Friedman & F. H. Hahn (ed.), Handbook of Monetary Economics, edition 1, volume 2, chapter 16, pages 837-888 Elsevier.
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