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A Choice Prediction Competition for Social Preferences in Simple Extensive Form Games: An Introduction
Agricultural Economics and Management, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Max Wertheimer Minerva Center for Cognitive Studies, Faculty of Industrial Engineering and Management, Technion, Haifa 32000, Israel
Department of Economics, 308 Littauer, Harvard University, Cambridge, MA 02138, USA
Harvard Business School, 441 Baker Library, Boston, MA 02163, USA
* Author to whom correspondence should be addressed.
Received: 14 March 2011; Accepted: 5 July 2011 / Published: 25 July 2011
Abstract: Two independent, but related, choice prediction competitions are organized that focus on behavior in simple two-person extensive form games (http://sites.google.com/site/extformpredcomp/): one focuses on predicting the choices of the first mover and the other on predicting the choices of the second mover. The competitions are based on an estimation experiment and a competition experiment. The two experiments use the same methods and subject pool, and examine games randomly selected from the same distribution. The current introductory paper presents the results of the estimation experiment, and clarifies the descriptive value of some baseline models. The best baseline model assumes that each choice is made based on one of several rules. The rules include: rational choice, level-1 reasoning, an attempt to maximize joint payoff, and an attempt to increase fairness. The probability of using the different rules is assumed to be stable over games. The estimated parameters imply that the most popular rule is rational choice; it is used in about half the cases. To participate in the competitions, researchers are asked to email the organizers models (implemented in computer programs) that read the incentive structure as input, and derive the predicted behavior as an output. The submission deadline is 1 December 2011, the results of the competition experiment will not be revealed until that date. The submitted models will be ranked based on their prediction error. The winners of the competitions will be invited to write a paper that describes their model.
Keywords: social preferences; fairness; reciprocity; social welfare; trust; altruism
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MDPI and ACS Style
Ert, E.; Erev, I.; Roth, A.E. A Choice Prediction Competition for Social Preferences in Simple Extensive Form Games: An Introduction. Games 2011, 2, 257-276.
Ert E, Erev I, Roth AE. A Choice Prediction Competition for Social Preferences in Simple Extensive Form Games: An Introduction. Games. 2011; 2(3):257-276.
Ert, Eyal; Erev, Ido; Roth, Alvin E. 2011. "A Choice Prediction Competition for Social Preferences in Simple Extensive Form Games: An Introduction." Games 2, no. 3: 257-276.