This article discusses Alvin Roth’s research about moneyless markets, and in particular about the manner in which kidneys are allocated to patients needing transplants. As Titmuss pointed out for blood transfusions, providing monetary incentives to blood donors may crowd out supply, since...

We explore theoretically and empirically whether social interaction, including local and global interaction, influences the incidence of corruption. We first present an interaction-based model on corruption that predicts that the level of corruption is positively associated with social...

It is well-known in evolutionary game theory that population clustering in Prisoner's Dilemma games allows some cooperative strategies to invade populations of stable defecting strategies. We adapt this idea of population clustering to a two-person trust game. Without knowing it, players are...

The approval of NASDAQ'S SuperMontage was described as a challenge for the regulators. SuperMontage raises issues in relation to market structure, fragmentation and competition.