crowd out a consumer's self-inference of altruism from buying a good bundled with a charitable donation. Alternative … theories of motivation crowding are unable to fit the non-monotonic moments in the data. A structural model of self …

We present evidence from a natural field experiment involving nearly 100,000 individuals on the effects of offering …

. Second, we can reject the pure altruism model of giving. Third, we find that public good provision is maximized in both the …

begin by reporting results from an experiment in which we investigate how cooperation in allocation games is affected by the …

This paper reports the results of an experiment evaluating the effects of incentives on individuals' willingness to … participate in a survey. By pairing the assessment with a natural field experiment, the analysis considers private versus public …

effectiveness, whereas small prior donors decrease their giving. We motivate the analysis and experiment with a theoretical model … that highlights two predictions. First, larger gift amounts, holding education and income constant, is a proxy for altruism …). Second, those motivated by altruism will respond positively to appeals based on evidence, whereas those motivated by warm …