cities to conduct a field experiment with roughly 350 donation appeals. We induce spatial differentiation by varying the …

-effort experiment based on this model. Consistent with a behavioral approach to public finance, we find that tournament workers are less …

This paper presents a formal theory of reciprocity. Reciprocity means that people reward kind actions and punish unkind … ones. The theory takes into account that people evaluate the kindness of an action not only by its consequences but also … the intention underlying this action. The theory explains the relevant stylized facts of a wide range of experimental …