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...

The two-person centipede game is one of the most celebrated paradoxes of backward induction in complete information extensive form games. An experimental investigation of a three-person centipede game shows that the paradoxical results are strongly affected by the size of the stakes. When the...

The iterative elimination of strongly dominated strategies (IESDS) and mixed-equilibrium solution concepts are studied in an iterated two-person investment game with discrete strategy spaces, non-recoverable investments, and either equal or unequal investment capital. In this game, the player...