Duffy, Sean and Smith, John (2012): Cognitive load in the multi-player prisoner's dilemma game.
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We find that differences in the ability to devote cognitive resources to a strategic interaction imply differences in strategic behavior. In our experiment, we manipulate the availability of cognitive resources by applying a differential cognitive load. In cognitive load experiments, subjects are directed to perform a task which occupies cognitive resources, in addition to making a choice in another domain. The greater the cognitive resources required for the task implies that fewer such resources will be available for deliberation on the choice. Although much is known about how subjects make decisions under a cognitive load, little is known about how this affects behavior in strategic games. We run an experiment in which subjects play a repeated multi-player prisoner's dilemma game under two cognitive load treatments. In one treatment, subjects are placed under a high cognitive load (given a 7 digit number to recall) and subjects in the other are placed under a low cognitive load (given a 2 digit number). We find that the behavior of the subjects in the low load condition converges to the Subgame Perfect Nash Equilibrium prediction at a faster rate than those in the high load treatment. However, we do not find the corresponding relationship involving outcomes in the game. Specifically, there is no evidence of a significantly different convergence of game outcomes across treatments. As an explanation of these two results, we find evidence that low load subjects are better able to condition their behavior on the outcomes of previous periods.
|Item Type:||MPRA Paper|
|Original Title:||Cognitive load in the multi-player prisoner's dilemma game|
|Keywords:||cognitive resources; experimental economics; experimental game theory; public goods game|
|Subjects:||C - Mathematical and Quantitative Methods > C7 - Game Theory and Bargaining Theory > C72 - Noncooperative Games
C - Mathematical and Quantitative Methods > C9 - Design of Experiments > C91 - Laboratory, Individual Behavior
|Depositing User:||John Smith|
|Date Deposited:||12. Jan 2012 16:23|
|Last Modified:||16. Feb 2013 00:33|
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