We re-analyse participant behaviour in standard economics experiments studying voluntary contributions to a public good. Previous approaches were based in part on a priori models of decision-making, such as maximising personal earnings, or reciprocating the behaviour of others. Many participants...

We report the results of ultimatum game experiments designed to test for differences in the behavior of women and men. Women's proposals are on average more generous than men's, regardless of the sex of the partner, and women respondents are more likely to accept an offer of a given amount. A...