We explore how risk-taking in the card game contract bridge, and in a financial gamble, correlate with variation in the dopamine receptor D4 gene (DRD4) among serious tournament bridge players. In bridge risk-taking, we find significant interactions between genetic predisposition and skill....

Online labor markets have great potential as platforms for conducting experiments. They provide immediate access to a large and diverse subject pool, and allow researchers to control the experimental context. Online experiments, we show, can be just as valid - both internally and externally - as...

We study the classic divide-and-choose method for equitably allocating divisible goods between two players who are rational, self-interested Bayesian agents. The players have additive private values drawn from common priors. We characterize the structure of optimal divisions in the...

This paper experimentally examines the effect of social comparisons in ultimatum bargaining. While previous experiments and the theoretical models on fairness focus on the two bargaining counterparts, we address a new reference group - others in like circumstances. We inform responders on how...

Due to betrayal aversion, people take risks less willingly when the agent of uncertainty is another person rather than nature. Individuals in four countries (Brazil, Switzerland, the United Arab Emirates and the United States) confronted either a binary-choice trust game or a risky decision...

Online labor markets have great potential as platforms for conducting experiments, as they provide immediate access to a large and diverse subject pool and allow researchers to conduct randomized controlled trials. We argue that online experiments can be just as valid - both internally and...

Why is private investment so low in Gulf compared to Western countries? We investigate cross-regional differences in trust and reference points for trustworthiness as possible factors. Experiments controlling for cross-regional differences in institutions and beliefs about trustworthiness reveal...