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Why Lying Pays: Truth Bias in the Communication with Conflicting Interests

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Author Info
Toshiji Kawagoe
Hirokazu Takizawa
Abstract

We conduct experiments of a cheap-talk game with incomplete information in which one sender type has an incentive to misrepresent her type. Although that Sender type mostly lies in the experiments, the Receiver tends to believe the Sender's messages. This confirms "truth bias" reported in communication theory in a oneshot, anonymous environment without nonverbal cues. These results cannot be explained by existing refinement theories, while a bounded rationality model explains them under certain conditions. We claim that the theory for the evolution of language should address why truthful communication survives in the environment in which lying succeeds.

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Paper provided by Research Institute of Economy, Trade and Industry (RIETI) in its series Discussion papers with number 05018.

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Length: 27 pages
Date of creation: Mar 2005
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Handle: RePEc:eti:dpaper:05018

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  6. Cooper, Russell, et al, 1992. "Communication in Coordination Games," The Quarterly Journal of Economics, MIT Press, vol. 107(2), pages 739-71, May. [Downloadable!] (restricted)
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  11. Cho, In-Koo & Kreps, David M, 1987. "Signaling Games and Stable Equilibria," The Quarterly Journal of Economics, MIT Press, vol. 102(2), pages 179-221, May. [Downloadable!] (restricted)
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  15. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-51, November. [Downloadable!] (restricted)
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  17. Jacob Glazer & Ariel Rubinstein, 2004. "On Optimal Rules of Persuasion," Econometrica, Econometric Society, vol. 72(6), pages 1715-1736, November. [Downloadable!] (restricted)
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