Perjury versus Truth-Revelation: Quantity or Quality of Testimony
In trials witnesses often slant their testimony to advance their interests.To obtain truthful testimony, courts rely on perjury rules. We show that perjury rules are not truth-revealing and we derive a truth-revealing mechanism for the same set of restrictions under which perjury rules operate. If the judge uses a truth-revealing mechanism, he will get less testimony than under perjury because the defendant will not present a witness with unfavorable news; however, testimony is of higher quality. We show that a court striving for precision prefers truth-revelation to perjury. If the court is rational in the Bayesian sense, chances for the defendant to prevail are the same under perjury and truth-revelation from an ex ante point of view. Truth-revelation thus dominates perjury even when the lower quantity of testimony is taken into account.
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- Emons, Winand & Sobel, Joel, 1991.
"On the Effectiveness of Liability Rules when Agents Are Not Identical,"
Review of Economic Studies,
Wiley Blackwell, vol. 58(2), pages 375-90, April.
- Emons,Winand & Sobel,Joel, 1988. "On the effectiveness of liability rules when agents are not identical," Discussion Paper Serie A 212, University of Bonn, Germany.
- Bernardo, Antonio E & Talley, Eric & Welch, Ivo, 2000.
"A Theory of Legal Presumptions,"
Journal of Law, Economics and Organization,
Oxford University Press, vol. 16(1), pages 1-49, April.
- Richard A. Posner, 1999. "The Law and Economics of the Economic Expert Witness," Journal of Economic Perspectives, American Economic Association, vol. 13(2), pages 91-99, Spring.
- Cooter, Robert D. & Emons, Winand, 2000.
"Truth-Bonding and Other Truth-Revealing Mechanisms for Courts,"
Berkeley Olin Program in Law & Economics, Working Paper Series
qt35j9s08h, Berkeley Olin Program in Law & Economics.
- Robert Cooter & Winand Emons, 2004. "Truth-Bonding and Other Truth-Revealing Mechanisms for Courts," European Journal of Law and Economics, Springer, vol. 17(3), pages 307-327, May.
- Roger B. Myerson, 1983. "Bayesian Equilibrium and Incentive-Compatibility: An Introduction," Discussion Papers 548, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Robert Thornton & John Ward, 1999. "The Economist in Tort Litigation," Journal of Economic Perspectives, American Economic Association, vol. 13(2), pages 101-112, Spring.
- Emons, Winand, 1994.
"The provision of environmental protection measures under incomplete information: An introduction to the theory of mechanism design,"
International Review of Law and Economics,
Elsevier, vol. 14(4), pages 479-491, December.
- Winand Emons, 1993. "The Provision of Environmental Protection Measures under Incomplete Information: An Introduction to the Theory of Mechanism Design," Diskussionsschriften dp9310, Universitaet Bern, Departement Volkswirtschaft.
- Paul Milgrom & John Roberts, 1986.
"Relying on the Information of Interested Parties,"
RAND Journal of Economics,
The RAND Corporation, vol. 17(1), pages 18-32, Spring.
- Lipman Barton L. & Seppi Duane J., 1995. "Robust Inference in Communication Games with Partial Provability," Journal of Economic Theory, Elsevier, vol. 66(2), pages 370-405, August.
- Robert Cooter & Winand Emons, 2000.
"Truth-Revealing Mechanisms for Courts,"
Econometric Society World Congress 2000 Contributed Papers
0211, Econometric Society.
- Robert Cooter & Winand Emons, 2003. "Truth-Revealing Mechanisms for Courts," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 159(2), pages 259-, June.
- Michael J. Mandel, 1999. "Going for the Gold: Economists as Expert Witnesses," Journal of Economic Perspectives, American Economic Association, vol. 13(2), pages 113-120, Spring.
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