Extensive data has convincingly demonstrated that expected utility, the reigning economic theory of rational decision making, fails descriptively. This descriptive failure casts doubt on the validity of classical utility measurements. Prospect theory can better explain choice behaviour because...

This paper reports the findings of a meta-analysis of 37 papers with 75 results from ultimatum game experiments. We find that on average the proposer offers 40% of the pie to the responder. This share is smaller for larger pie sizes and larger when a strategy method is used or when subjects are...