Decades of research document individual differences in prosocial behavior using controlled
experiments that model social interactions in situations of interdependence. However …

This study compiles the main findings in the field of academic research on pure donation-
based crowdfunding (DCF) soliciting monetary contributions for charitable causes. To this …

Decisions involving charitable giving often occur under the shadow of risk. A common
finding is that potential donors give less when there is greater risk that their donation will …

We present a lab-field experiment designed to systematically assess the external validity of
social preferences elicited in a variety of experimental games. We do this by comparing …

This paper addresses a recent criticism of experimental economics, by Levitt and List
[2007ab, 2008], that lab experimental findings may not generalize to field settings. We argue …

We present evidence from a natural field experiment designed to shed light on the efficacy of
fundraising schemes in which donations are matched by a lead donor. In conjunction with …

Impersonal cooperation among strangers enables societies to create valuable public goods,
such as infrastructure, public services, and democracy. Several factors have been proposed …

We measure people's pro-social behavior, in terms of voluntary money and labor
contributions to an archetypical public good, a bridge, and in terms of voluntary money …

We present evidence from a natural field experiment and structural model to shed light on
the efficacy of alternative fundraising schemes. In conjunction with the Bavarian State Opera …

Hypothetical bias in stated-preference methods appears sometimes to be very large, and
other times non-existent. This is here largely explained by a model where people derive …