On Doctors, Mechanics and Computer Specialists. Or Where are the Problems with Credence Goods?
In recent years various contributions have analyzed the credence goods problem under a wide variety of assumptions yielding equilibria exhibiting various degrees of inefficiencies and fraud. The variety of results has fostered the impression that the equilibrium behaviour of experts and consumers in credence goods markets sensitively depends on the details of the models. The present Paper shows that the results for the majority of the specified models can be reproduced in a very simple unifying framework. Our model is constructed so that an efficient solution is reached if a small number of critical assumptions are satisfied, and virtually all existing results on inefficiencies in the credence good market are obtained by relaxing one of these conditions. Existing results are generalized, some previous interpretations of the forces leading to the striking differences in outcomes are questioned, and a new source for inefficiencies is identified.
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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- 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.
- Asher Wolinsky, 1991. "Competition in a Market for Informed Experts' Services," Discussion Papers 959, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- W. Pesendorfer & A. Wolinsky, 2000.
"Second Opinions and Price Competition: Inefficiency in the Market for Expert Advice,"
Princeton Economic Theory Papers
00s18, Economics Department, Princeton University.
- Wolfgang Pesendorfer & Asher Wolinsky, 2003. "Second Opinions and Price Competition: Inefficiency in the Market for Expert Advice," Review of Economic Studies, Wiley Blackwell, vol. 70(2), pages 417-437, 04.
- Wolfgang Pesendorfer & Asher Wolinsky, 1998. "Second Opinions and Price Competition Inefficiency in the Market for Expert Advice," Discussion Papers 1229, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Wolfgang Pesendorfer & Asher Wolinsky, 2000. "Second Opinions and Price Competition: Inefficiency in the Market for Expert Advice," Discussion Papers 1306, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Darby, Michael R & Karni, Edi, 1973. "Free Competition and the Optimal Amount of Fraud," Journal of Law and Economics, University of Chicago Press, vol. 16(1), pages 67-88, April.
- Carolyn Pitchik & Andrew Schotter, 1993. "Information Transmission in Regulated Markets," Canadian Journal of Economics, Canadian Economics Association, vol. 26(4), pages 815-29, November.
- Emons, Winand, 2001.
"Credence goods monopolists,"
International Journal of Industrial Organization,
Elsevier, vol. 19(3-4), pages 375-389, March.
- Emons, Winand, 1997. "Credence Goods Monopolists," Berkeley Olin Program in Law & Economics, Working Paper Series qt9c5508x4, Berkeley Olin Program in Law & Economics.
- Winand Emons, 1995. "Credence Goods Monopolists," Diskussionsschriften dp9501, Universitaet Bern, Departement Volkswirtschaft.
- Asher Wolinsky, 1994. "Competition in Markets for Credence Goods," Discussion Papers 1099, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Taylor, Curtis R, 1995. "The Economics of Breakdowns, Checkups, and Cures," Journal of Political Economy, University of Chicago Press, vol. 103(1), pages 53-74, February.
- Akerlof, George A, 1970. "The Market for 'Lemons': Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, MIT Press, vol. 84(3), pages 488-500, August.
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