quickly if we introduce two relevant features of social life into the experiment: (i) subjects can migrate across groups with …

and social norms, and trust. In a preregistered online experiment (n = 1,038), we find that biased institutions reduce …

altruism, reputational concerns, and material incentives. We present an analysis of a unique data set that combines an … experimental measure of altruism, surveyed measures of other factors including reputational concerns, and call records from … explanations, we find that altruism and reputational concerns are positively associated with the decision to volunteer. Moreover …

experiment corroborates these findings and confirms that donors are motivated by the economic value of the items offered. We also … overestimated. -- Incentives ; altruism ; public good provision ; pro-social behavior ; public health …

The effects of stake size on cooperation and punishment are investigated using a public goods experiment. We find that …

Using a laboratory experiment with nested local and global public goods, we analyze the stability of global groups when …