Z:gnu-www-ja-frank--f8512f-To summarize the existing lite/en

To summarize the existing literature, both the Marwell and Ames and Carter and Irons papers provide evidence consistent with the hypothesis that economists tend to behave less cooperatively than noneconomists. But because of the specific experimental design problems mentioned, neither study is conclusive. In the following sections we describe our own attempts to test the hypothesis that economists behave less cooperatively.