EconStor >
Claremont McKenna College >
Department of Economics, Claremont McKenna College >
Claremont Colleges Working Papers in Economics, Department of Economics, Claremont McKenna College >

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10419/23380
  
Title:Ordinal cheap talk PDF Logo
Authors:Chakraborty, Archishman
Harbaugh, Rick
Issue Date:2003
Series/Report no.:Working paper series / Claremont McKenna College 03,05
Abstract: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 some 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.
Subjects:cheap talk
credibility
JEL:C72
D72
D74
D82
Document Type:Working Paper
Appears in Collections:Claremont Colleges Working Papers in Economics, Department of Economics, Claremont McKenna College

Files in This Item:
File Description SizeFormat
2003-05.pdf328.24 kBAdobe PDF
No. of Downloads: Counter Stats
Download bibliographical data as: BibTeX
Share on:http://hdl.handle.net/10419/23380

Items in EconStor are protected by copyright, with all rights reserved, unless otherwise indicated.