We present results from a field experiment testing the gift-exchange hypothesis inside a treeplantingfirm paying its workforce incentive contracts. Firm managers told a crew of treeplanters they would receive a pay raise for one day as a result of a surplus not attributable topast planting...

This paper explores the factors that account for the receipt of remittances across households in Moldova who have migrants abroad. Unlike most of the existing literature, we approach our research question from the perspective of the recipient household and use it to interpret the...

Journals favor rejection of the null hypothesis. This selection upon tests may distort the behavior of researchers. Using 50,000 tests published between 2005 and 2011 in the AER, JPE, and QJE, we identify a residual in the distribution of tests that cannot be explained by selection. The...

Economists have traditionally assumed that individual behavior is motivated exclusively by extrinsic incentives. Social psychologists, in contrast, stress that intrinsic motivations are also important. In recent work, economic theorists have started to build psychological factors, like intrinsic...

We examine how economic incentives affect pro-social behavior through the analysis of a unique dataset with information on more than 14,000 American Red Cross blood drives. Our findings are consistent with blood donors responding to incentives in a "standard" way; offering donors economic...