In a trust game experiment, we elicited choices using either the so-called game or strategy method. While the two methods yield similar rates of trust, the strategy method reveals a significantly lower rate of trustworthiness.Keywords: Trust; game method; laboratory; experiments; reciprocity JEL Classification: C90
IntroductionExperimental economists are increasingly using the strategy method for eliciting choices in laboratory and field experiments. Following this method, first subjects state contingent choices for every decision node they may face; then subjects are matched; and, finally, the appropriate choices are carried out for the nodes that are reached, and the other contingent choices are ignored. This contrasts with the more natural game method, in which subjects are first matched; then subjects learn when specific decision nodes are reached; and they make a single choice only for realized nodes.While from a game-theoretic perspective these elicitation methods should not affect behavior, in this paper we show that the two methods yield different behavior in a simplified trust game. Compared to the game method, in the strategy method the fraction of completely selfish subjects who act in an untrustworthy manner increases by 50 percent, and the fraction of egalitarian equal splits of the surplus falls by two-thirds.Researchers find the strategy method useful for several reasons. First, it allows the researcher to observe behavior at rarely-reached decision nodes. Second, it is convenient for use *