Ordinal Cheap Talk
Can comparative statements be credible even when absolute statements are not? For instance, can a professor credibly rank different students for a prospective employer even if she has an incentive to exaggerate the merits of each student? Or can an analyst credibly rank different stocks even if the client would be dubious about a recommendation to buy any one of them? We examine such problems in a multidimensional sender-receiver game where the sender has private information about multiple variables. We show that ordinal cheap talk, in which the variables are completely ordered by value or grouped into categories by value, can be credible even when interests are too opposed to support communication along any single dimension. Ordinal cheap talk is credible because it reveals both favorable and unfavorable information at the same time, thereby precluding any possibility of exaggeration. The communication gains from ordinal cheap talk can be substantial with only a couple of dimensions, and the payoffs from a complete ordering are asymptotically equivalent to full revelation as the number of variables becomes large. However, in various circumstances the sender can do better through a partial ordering that categorizes variables. Compared to other forms of cheap talk, ordinal cheap talk is exceedingly simple in that the sender only makes straightforward, comparative statements.
|Date of creation:||Mar 2003|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: (909) 607-3041
Fax: (909) 621-8249
Web page: http://www.claremontmckenna.edu/rdschool/papers/
More information through EDIRC
References listed on IDEAS
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.:
- Marco Battaglini, 2002.
"Multiple Referrals and Multidimensional Cheap Talk,"
Econometric Society, vol. 70(4), pages 1379-1401, July.
- Marco Battaglini, 2000. "Multiple Referrals and Multidimensional Cheap Talk," Econometric Society World Congress 2000 Contributed Papers 1557, Econometric Society.
- Marco Battaglini, 1999. "Multiple Referrals and Multidimensional Cheap Talk," Discussion Papers 1295, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Krishna, V. & Morgan, J., 1999.
"A Model of Expertise,"
206, Princeton, Woodrow Wilson School - Public and International Affairs.
- Baliga, Sandeep & Morris, Stephen, 2002.
"Co-ordination, Spillovers, and Cheap Talk,"
Journal of Economic Theory,
Elsevier, vol. 105(2), pages 450-468, August.
- Rubinstein, Ariel, 1996. "Why Are Certain Properties of Binary Relations Relatively More Common in Natural Language?," Econometrica, Econometric Society, vol. 64(2), pages 343-55, March.
- Matthew O Jackson & Hugo F Sonnenschein, 2003.
"The Linking of Collective Decisions and Efficiency,"
NajEcon Working Paper Reviews
- Jackson, Matthew O. & Sonnenschein, Hugo F., 2003. "The Linking of Collective Decisions and Efficiency," Working Papers 1159, California Institute of Technology, Division of the Humanities and Social Sciences.
- Matthew O. Jackson & Hugo F. Sonnenschein, 2003. "The Linking of Collective Decisions and Efficiency," Microeconomics 0303007, EconWPA.
- Sobel, Joel, 1985. "A Theory of Credibility," Review of Economic Studies, Wiley Blackwell, vol. 52(4), pages 557-73, October.
- Archishman Chakraborty & Nandini Gupta & Rick Harbaugh, 2004.
"Best Foot Forward or Best for Last in a Sequential Auction?,"
2004-07, Indiana University, Kelley School of Business, Department of Business Economics and Public Policy.
- Archishman Chakraborty & Nandini Gupta & Rick Harbaugh, 2006. "Best foot forward or best for last in a sequential auction?," RAND Journal of Economics, RAND Corporation, vol. 37(1), pages 176-194, 03.
- Archishman Chakraborty & Nandini Gupta & Rick Harbaugh, 2000. "Best Foot Forward or Best for Last in a Sequential Auction?," Claremont Colleges Working Papers 2000-43, Claremont Colleges.
- Dessein, Wouter, 2002.
"Authority and Communication in Organizations,"
Review of Economic Studies,
Wiley Blackwell, vol. 69(4), pages 811-38, October.
- Wouter Dessein, 2000. "Authority and Communication in Organizations," Econometric Society World Congress 2000 Contributed Papers 1747, Econometric Society.
- Athey, Susan, 2002. "Monotone Comparative Statics Under Uncertainty," Scholarly Articles 3372263, Harvard University Department of Economics.
- Robert J. Aumann & Sergiu Hart, 2002.
"Long Cheap Talk,"
Discussion Paper Series
dp284, The Federmann Center for the Study of Rationality, the Hebrew University, Jerusalem, revised Nov 2002.
- Stephen Morris, 1999.
Cowles Foundation Discussion Papers
1242, Cowles Foundation for Research in Economics, Yale University.
- Vincent P. Crawford, 2003.
"Lying for Strategic Advantage: Rational and Boundedly Rational Misrepresentation of Intentions,"
American Economic Review,
American Economic Association, vol. 93(1), pages 133-149, March.
- Crawford, Vincent P., 2001. "Lying for Strategic Advantage: Rational and Boundedly Rational Misrepresentation of Intentions," University of California at San Diego, Economics Working Paper Series qt6k65014s, Department of Economics, UC San Diego.
- Chakraborty, Archishman & Harbaugh, Rick, 2003. "Cheap talk comparisons in multi-issue bargaining," Economics Letters, Elsevier, vol. 78(3), pages 357-363, March.
- Joseph Farrell, 1987. "Cheap Talk, Coordination, and Entry," RAND Journal of Economics, The RAND Corporation, vol. 18(1), pages 34-39, Spring.
- Susan Athey, 2002. "Monotone Comparative Statics Under Uncertainty," The Quarterly Journal of Economics, MIT Press, vol. 117(1), pages 187-223, February.
- Joseph Farrell & Matthew Rabin, 1996. "Cheap Talk," Journal of Economic Perspectives, American Economic Association, vol. 10(3), pages 103-118, Summer.
- Stein, Jeremy C, 1989. "Cheap Talk and the Fed: A Theory of Imprecise Policy Announcements," American Economic Review, American Economic Association, vol. 79(1), pages 32-42, March.
- Michael Ostrovsky & Michael Schwarz, 2003. "Equilibrium Information Disclosure: Grade Inflation and Unraveling," Harvard Institute of Economic Research Working Papers 1996, Harvard - Institute of Economic Research.
- Milgrom, Paul R & Weber, Robert J, 1982.
"A Theory of Auctions and Competitive Bidding,"
Econometric Society, vol. 50(5), pages 1089-1122, September.
- Phillip C. Stocken, 2000. "Credibility of Voluntary Disclosure," RAND Journal of Economics, The RAND Corporation, vol. 31(2), pages 359-374, Summer.
- Marco Ottaviani & Francesco Squintani, 2002. "Non-Fully Strategic Information Transmission," Wallis Working Papers WP29, University of Rochester - Wallis Institute of Political Economy.
- V. Crawford & J. Sobel, 2010.
"Strategic Information Transmission,"
Levine's Working Paper Archive
544, David K. Levine.
- Matthews, Steven A, 1989. "Veto Threats: Rhetoric in a Bargaining Game," The Quarterly Journal of Economics, MIT Press, vol. 104(2), pages 347-69, May.
- Morgan, J. & Stocken, P., 1998.
"An Analysis of Stock Recommendations,"
204, Princeton, Woodrow Wilson School - Public and International Affairs.
When requesting a correction, please mention this item's handle: RePEc:clm:clmeco:2003-05. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.