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. …

important determinant of cooperation in collective action problems. This paper conceptualizes community aspirations and … investigates whether the proposed measure is associated with cooperation. The second part of the paper presents the results of a … cooperation measured using experimental and survey data. Exposure to the examples of cooperation increases cooperation, but has a …

We study cooperation within and between groups in the laboratory, comparing treatments in which two groups have … conflict. We model conflict using an inter-group Tullock contest, and measure its effects upon cooperation using a multi …-level public good game. We demonstrate that conflict increases cooperation within groups, while decreasing cooperation between …

find a large and positive effect of endogenous institutional choice on the level of cooperation in comparison to … exogenously implemented institutions. This suggests that participation rights enhance cooperation in groups. With endogenous … levels of cooperation. Our results are evaluated against the predictions of social preference models. -- public goods …