The strategy method is often used in public goods games to measure an individual's willingness to cooperate depending on the level of cooperation by their groupmates (conditional cooperation). However, while the strategy method is informative, it risks conflating confusion with a desire for fair...

We consider mixed populations (N=21) of genuine (humans) and artificial (robots) agents, repeatedly interacting in small groups whose composition is changed randomly from round to round. Our purpose is to study the spread of cooperative or non-cooperative behavior in the population over time by...

We study a model where agents face a continuum of two-player games and categorize them into a finite number of situations to make sense of their complex environment. Each agent can cooperate or defect, conditional on the perceived category. Agents may not share the same categorization. The games...

A revision game of experimentation is examined in which players search for an unknown threshold. Players encounter individual random opportunities to revise actions. Lower actions save flow cost, but the player whose action falls below the threshold suffers a costly breakdown and exits the game....

This paper studies the interaction of beliefs, payoff parameters, and the cooperation rate in the infinitely repeated prisoner's dilemma. We show formally that a player's belief about the probability of cooperation by their opponent moderates the effect of changes in the payoff parameters on...