We compare the strategy and direct-response methods in a one-shot trust game with hidden action. In our experiment, the decision elicitation method affects neither participants' behavior nor their beliefs about this behavior. We conclude that the direct-response method does not, by itself,...

This paper introduces new experimental designs to examine how conditional cooperation and punishment behaviours respond to the full range of variation in the contributions of others. It is shown that contributions become significantly more selfish-biased as others contribute more unequally,...