Exogenously imposed infinite repetition is known to mitigate people's uncooperative behaviors in dilemma situations with partner matching through personal enforcement. One as yet unanswered question is whether people collectively choose to interact with each other under the partner matching...

I investigate finitely repeated partnership games with imperfect monitoring where both mutual effort and mutual shirking are Nash equilibria of the stage game. The treatment variable is the number of repetitions. I find that period 1 effort rates are increasing in the number of repetitions, but...

We propose a model of coupled population games where intra- and intergroup interactions overlap. We analyze the general class of symmetric 2x2 games with coupled replicator dynamics. Standard one- and two-population predictions extend to a total of ten regions with different sets of attractors,...

We study how intelligence and personality affect the outcomes of groups, focusing on repeated interactions that provide the opportunity for profitable cooperation. Our experimental method creates two groups of subjects who have different levels of certain traits, such as higher or lower levels...

This paper presents the empirical phase diagram showing the cooperation phase, the mixed phase and the defection phase of prisoner's dilemma experiment. The empirical data includes 21 experiments using a total of 350 human subjects. Experimental parameters are the possibility of continuation...

We experimentally analyze the effect of endogenous group formation on the type of sanctioning institutions emerging in a society. We allocate subjects to one of two groups. Subjects play a repeated public goods game and vote on the sanctioning system (formal or informal) to be implemented in...

We study how the objective of the contributions affects the willingness to contribute to real-life public goods. We conducted three treatments of a fundraising experiment among religious Jewish students in which the contributions were assigned to finance sustainable supplies and the ongoing...

The possibility of the presence of multiple equilibria in closed exchange and production-and-exchange economies is usually ignored in macroeconomic models even though they are important in real economies. We argue that default and bankruptcy laws serve to provide the conditions for uniqueness of...

This paper studies whether and how strategy revision opportunities affect levels of collusion in indefinitely repeated two-player games. Consistent with standard theory, we find that such opportunities do not affect strategy choices, or collusion levels, if the game is of strategic substitutes....

Pursuing sources of entrepreneurial and competitive advantage, researchers have been exploring cognition. We examine how cognitive capabilities affect competitive performance, drawing on two constructs rooted in psychology and economics. A familiar one is analytic skill, the ability to solve...