Pledges feature in international climate cooperation since the 2015 Paris Agreement. We explore how differences in … the Paris Agreement, can leverage the power of trustworthiness to enhance cooperation. …

Reciprocal cooperation can be studied in the Centipede game, in which two players alternate in choosing between a … investigated cooperation in four Centipede games differing in their payoffs at the game's end (positive versus zero) and payoff … high payoff inequality were found to reduce cooperation significantly. Contrary to previous predictions, combining these …

-Stay-Lose-Shift, are not prevalent. We also find that the strategies used to support cooperation change with the parameters of the game …

opportunity for profitable cooperation. Our experimental method creates two groups of subjects who are similar but have different … long-run losses. Initially similar, cooperation rates for groups with different intelligence levels diverge, declining in … groups of lower intelligence, and increasing to reach almost full cooperation levels in groups of higher intelligence …

initial cooperation rates are similar, it increases in the groups with higher intelligence to reach almost full cooperation … differences in the response to past cooperation of the partner. In higher intelligence subjects, cooperation after the initial … difference is absent. Cooperation of higher intelligence subjects is payoff sensitive, thus not automatic: in a treatment with …

hampers cooperation, as higher intelligence players are less cooperative once they are made aware that they play against …