Cooperation between groups with unequal benefits is often difficult to spontaneously form and maintain. Scholars have suggested that problem connection can be made in complementary directions to facilitate such cooperation. However, in reality, problem connection is rare, and it even forms...

Cooperation is of utmost importance to society as a whole, but is often challenged by individual self-interests. While game theory has studied this problem extensively, there is little work on interactions within and across groups with different preferences or beliefs. Yet, people from different...

Mentalising is assumed to be involved in decision-making that is necessary to social interaction. We investigated the relationship between mentalising and two types of strategic games - those involving the choice to cooperate with another for joint gain or compete for own gain and those...

When a prisoner's dilemma-like game is repeated any finite number of times, the only equilibrium outcome is the one in which all players defect in all periods. However, if cooperation among the players changes their perception of the game by making defection increasingly less attractive, then...

In this paper, we experimentally investigate how sending a signal of following social norms impacts people's cooperative behavior in a repeated public goods game, where we disentangle the effect of strategy and internalization of social norms on cooperation. We find that under the signaling...

Explicit and implicit incentives and opportunities for mutually beneficial voluntary cooperation co-exist in many contractual relationships. In a series of eight laboratory gift-exchange experiments, we show that incentive contracts can lead to crowding out of voluntary cooperation even after...

The fact that individuals will most likely behave differently in different situations begets the introduction of conditional strategies. Inspired by this, we study the evolution of cooperation in the spatial public goods game, where besides unconditional cooperators and defectors, also different...