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Reputation and honesty in a market for information


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  • Gary Charness
  • Nuno Garoupa


Previous works on asymmetric information in asset markets tend to focus on the potential gains in the asset market itself. We focus on the market for information and conduct an experimental study to explore, in a game of finite but uncertain duration, whether reputation can be an effective constraint on deliberate misinformation. At the beginning of each period, an uninformed potential asset buyer can purchase information, at a fixed price and from a fully-informed source, about the value of the asset in that period. The informational insiders cannot purchase the asset and are given short-term incentives to provide false information when the asset value is low. Our model predicts that, in accordance with the Folk Theorem, Pareto-superior outcomes featuring truthful revelation should be sustainable. However, this depends critically on beliefs about rationality and behavior. We find that, overall, sellers are truthful 89% of the time. More significantly, the observed frequency of truthfulness is 81% when the asset value is low. Our result is consistent with both mixed-strategy and trigger strategy interpretations and provides evidence that most subjects correctly anticipate rational behavior. We discuss applications to financial markets, media regulation, and the stability of cartels.

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Bibliographic Info

Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 326.

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Date of creation: Sep 1998
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Handle: RePEc:upf:upfgen:326

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Keywords: Asymmetric information; reputation; insider regulation; financial markets; Leex;

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  1. Admati, Anat R. & Pfleiderer, Paul, 1986. "A monopolistic market for information," Journal of Economic Theory, Elsevier, vol. 39(2), pages 400-438, August.
  2. David Kreps & Robert Wilson, 1999. "Reputation and Imperfect Information," Levine's Working Paper Archive 238, David K. Levine.
  3. Benabou, R. & Laroque, G., 1989. "Using Privileged Information To Manipulate Markets: Insiders, Gurus, And Credibility," Working papers 513, Massachusetts Institute of Technology (MIT), Department of Economics.
  4. Haddock, David D & Macey, Jonathan R, 1987. "Regulation on Demand: A Private Interest Model, with an Application to Insider Trading Regulation," Journal of Law and Economics, University of Chicago Press, vol. 30(2), pages 311-52, October.
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