Not so cheap talk: a model of advice with communication costs
We model a game similar to the interaction between an academic advisor and advisee. Like the classic cheap talk setup, an informed player sends information to an uninformed receiver who is to take an action which affects the payoffs of both sender and receiver. However, unlike the classic cheap talk setup, the preferences regarding the receiver's actions are identical for both sender and receiver. Additionally, the sender incurs a communication cost which is increasing in the complexity of the message sent. We characterize the resulting equilibria. Under an additional out-of-equilibrium condition (Condition L), if preferences for sender and receiver are identical then the only equilibria are the most informative, feasible ones. A similar result appears in Chen, Kartik and Sobel (2008) when their No Incentive to Separate (NITS) condition is applied to the case where communication is costless but preferences diverge. Additionally, we model the competency of the advisee by the probability that the action is selected by mistake. We show that the informativeness of the sender is decreasing in the likelihood of the mistake. When the preferences between players diverge and when there are communication costs, we are not guaranteed uniqueness and we provide an example where an increase in communication costs can improve communication.
|Date of creation:||22 Aug 2009|
|Contact details of provider:|| Postal: Ludwigstraße 33, D-80539 Munich, Germany|
Web page: https://mpra.ub.uni-muenchen.de
More information through EDIRC
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.:
- Austen-Smith, David, 1994. "Strategic Transmission of Costly Information," Econometrica, Econometric Society, vol. 62(4), pages 955-963, July.
- Andreas Blume & Oliver Board & Kohei Kawamura, 2007.
ESE Discussion Papers
167, Edinburgh School of Economics, University of Edinburgh.
- Jacques Crémer & Luis Garicano & Andrea Prat, 2007.
"Language and the Theory of the Firm,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 122(1), pages 373-407.
- Blume, Andreas & DeJong, Douglas V. & Kim, Yong-Gwan & Sprinkle, Geoffrey B., 1997.
"Evolution of Communication with Partial Common Interest,"
97-18, University of Iowa, Department of Economics.
- Blume, Andreas & DeJong, Douglas V. & Kim, Yong-Gwan & Sprinkle, Geoffrey B., 2001. "Evolution of Communication with Partial Common Interest," Games and Economic Behavior, Elsevier, vol. 37(1), pages 79-120, October.
- Blume, A. & DeJong, D.V. & Kim, Y-G. & Sprinkle, G., 1997. "Evolution of Communication With Partial Common Interest," Discussion Paper 1997-115, Tilburg University, Center for Economic Research.
- Paul E. Fischer & Phillip C. Stocken, 2001. "Imperfect Information and Credible Communication," Journal of Accounting Research, Wiley Blackwell, vol. 39(1), pages 119-134, 06.
- Morgan, John & Stocken, Phillip C, 2003.
" An Analysis of Stock Recommendations,"
RAND Journal of Economics,
The RAND Corporation, vol. 34(1), pages 183-203, Spring.
- E. Kohlberg & J.-F. Mertens, 1998.
"On the Strategic Stability of Equilibria,"
Levine's Working Paper Archive
445, David K. Levine.
- Mathias Dewatripont & Jean Tirole, 2005.
"Modes of communication,"
ULB Institutional Repository
2013/9631, ULB -- Universite Libre de Bruxelles.
When requesting a correction, please mention this item's handle: RePEc:pra:mprapa:17056. 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: (Joachim Winter)
If references are entirely missing, you can add them using this form.