paid tends to lead to even lower effort levels. Based on our findings we suggest a new explanation for motivation crowding …. -- incentives ; crowding-out ; reciprocity ; reputation ; experiment …

to the altruism of donors, these natural experiments help identify heterogeneity in the distributions of the latent … altruism which motivates donors. This study examines gender heterogeneity of volunteer response by blood donors following the … predictions of a model where the distribution of latent altruism has smaller variance among women than men. First, the highest …

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

present a large-scale experiment with 883 children and adolescents, aged eight to seventeen years. Participants make decisions … ; gender ; experiment …

. Using exogenous variation in work absence induced by a randomized field experiment that increased treated workers' absence …