We study the effect of time flexibility on volunteering. Using an online experiment, we tested predictions of a model of inter-temporal volunteering. Consistent with our theoretical predictions, we find that flexibility in choosing when to allocate effort donations increases overall donations...

The permanent income hypothesis states that agents perfectly smooth consumption given a large, anticipated shock to income. Testing these implications is difficult given the endogenous nature of income and payment timing. We leverage exogenous variation in military bonus size and timing matched...

Think tanks and political leaders have raised concerns about the implications that the Covid-19 response and reconstruction might have on other social objectives that were setting the international agenda before the Covid-19 pandemic. We present experimental evidence for eight consecutive weeks...

Social comparison nudges that employ descriptive norms were found to increase charitable giving. This paper finds that individuals who receive a descriptive norm donate significantly more when they have to guess the descriptive norm beforehand. We argue that guessing draws attention to the norm...

We augment a standard dictator game to investigate how preferences for an environmental project relate to willingness to limit others' choices. We explore this issue by distinguishing three student groups: economists, environmental economists, and environmental social scientists. We find that...

We investigate the effect of a donation incentive tied to contributions to a public good when group members can decide on the size of the donation to be made. An up to 20 % donation of the public good was implemented either exogenously or endogenously by group members. In the Vote treatment,...

We investigate the effects of religion on charitable contributions of Muslims who are in a minority to non-Muslims who are in a majority and to fellow Muslims. We find that religious thinking leads to significantly more charitable giving by 10%. The effect of religious thinking is dependent on...

In different treatments of an intergenerational common resource experiment, monetary payoff maximization by each generation causes either negative or positive externalities for future generations. Two behavioral types have been observed previously in single generation games: equity motivated...

Donations in-kind can be a mixed blessing for charities, who are often more adept at solicitation than resale. Many organizations rely on raffles to turn donations into cash, but auctions are also common. Theory predicts that all-pay mechanisms should produce more revenue than winner-pay...

We report the results of an online experiment studying preferences for giving and preferences for group-wide redistribution in small (4-person) and large (200-person) groups. We find that the desire to engage in voluntary giving decreases significantly with group size. However, voting for...