We present evidence from a natural field experiment designed to shed light on whether individual behavior is consistent with a neoclassical model of utility maximization subject to budget constraints. We do this through the lens of a field experiment on charitable giving. We find that the...

Is there a way of matching donations that avoids crowding out? We introduce a novel matching method where the matched amount is allocated to a different project, present some simple theoretical considerations that predict reduced crowding out or crowding in (depending on the degree of...

While increasingly popular in many domains crowdfunding remains largely un-derresearched and little is known about the best way to encourage participation. In a field experiment we vary suggested amounts and test different wordings for a campaign to finance a club good - an institute's summer...

Human cooperation has been explained through rationality as well as heuristics-based models. Both model classes share the feature that knowledge of payoff functions is weakly beneficial for the emergence of cooperation. Here, we present experimental evidence to the contrary. We let human...

We provide the first field evidence for the role of pure self-image, independent of social image, in charitable giving. In an online fundraising campaign for a social youth project run on an opera ticket booking platform we document how individ-uals engage in self-deception to preserve their...

Do donors examine a single ask to donate in isolation or do they consider that other and future asks may come along? In the first year of our field experiment, we vary whether or not potential donors are informed that the ask will be repeated in the following year. This information has dramatic...

In a tedious real effort task, subjects know that their piece rate is either low or ten times higher. When subjects are informed about their piece rate realization, they adapt their performance. One third of subjects nevertheless forego this instrumental information when given the choice - and...

Multiple sources of funding are becoming increasingly important for charitable organizations. Donations from corporate donors for example account for 25-35% of charitable income for the largest US charities, across charitable sectors. This note presents some tentative first evidence from a...