We examine whether differences in risk preferences explain gender differentials in test scores amongst a large class of undergraduate microeconomics students, where students were evaluated using multiple choice questions. In each of five class tests, the negative penalty associated with an...

In attempting to understand cooperation, economists have used the methods of experimental economics to focus on spheres of human behavior in which humans display altruism, reciprocity, or other social preferences through giving and through punishment. Recent work has begun to examine whether...