Competition in Markets for Credence Goods
This paper investigates the functioning of markets for credence goods. These are markets in which the information asymmetries are of the form that sellers are also experts who determine customers' needs. It examines the role of customers' search for multiple opinions in disciplining experts. It characterizes the equilibrium amount of fraud in such markets and shows that, despite intense competition, the information asymmetry will be translated into a mark-up over cost embodied in the prices of the less expensive services. It points out that the equilbrium does not maximize the expected customers' surplus, even subject to the informational constraints regarding the experts' superior information.
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- Klein, Benjamin & Leffler, Keith B, 1981. "The Role of Market Forces in Assuring Contractual Performance," Journal of Political Economy, University of Chicago Press, vol. 89(4), pages 615-41, August.
- Asher Wolinsky, 1991.
"Competition in a Market for Informed Experts' Services,"
959, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Asher Wolinsky, 1993. "Competition in a Market for Informed Experts' Services," RAND Journal of Economics, The RAND Corporation, vol. 24(3), pages 380-398, Autumn.
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- Wolinsky, Asher, 1983. "Prices as Signals of Product Quality," Review of Economic Studies, Wiley Blackwell, vol. 50(4), pages 647-58, October.
- Diamond, Peter A., 1971. "A model of price adjustment," Journal of Economic Theory, Elsevier, vol. 3(2), pages 156-168, June.
- Jacob Glazer & Thomas G. McGuire, 1991. "The Economics of Referrals," Papers 0020, Boston University - Industry Studies Programme.
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