Pinocchio's Pupil: Using Eyetracking and Pupil Dilation to Understand Truth Telling and Deception in Sender-Receiver Games
American Economic Review
vol. 100,
no. 3, June 2010
(pp. 984-1007)
Abstract
We report experiments on sender-receiver games with an incentive for senders to exaggerate. Subjects "overcommunicate" -- messages are more informative of the true state than they should be, in equilibrium. Eyetracking shows that senders look at payoffs in a way that is consistent with a level-k model. A combination of sender messages and lookup patterns predicts the true state about twice as often as predicted by equilibrium. Using these measures to infer the state would enable receiver subjects to hypothetically earn 16-21 percent more than they actually do, an economic value of 60 percent of the maximum increment. (JEL C72, C91, D82, Z13)Citation
Wang, Joseph Tao-yi, Michael Spezio, and Colin F. Camerer. 2010. "Pinocchio's Pupil: Using Eyetracking and Pupil Dilation to Understand Truth Telling and Deception in Sender-Receiver Games." American Economic Review, 100 (3): 984-1007. DOI: 10.1257/aer.100.3.984Additional Materials
JEL Classification
- C72 Noncooperative Games
- C91 Design of Experiments: Laboratory, Individual
- D82 Asymmetric and Private Information
- Z13 Economic Sociology; Economic Anthropology; Social and Economic Stratification