We conduct a field experiment involving real purchasing decisions in a large supermarket chain to test the effect of different regulatory interventions aiming to induce a more climateâ€friendly diet on intrinsic motivation. Focusing on shoppers who prefer the dirty variety, we compare...

In a repeated public goods setting, we explore whether individuals, acting unilaterally, will provide an effective sanctioning institution. Subjects first choose unilaterally whether they will participate in a sanctioning stage that follows a contribution stage. Only those who gave themselves...

The underlying motivations for envy or related social preferences and their impact on agricultural innovations are examined by combining data from money burning experimental game and household survey from Ethiopia. In the first stage of the money burning experimental game, income inequality is...

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...

Apesteguia and Palacios-Huerta (APH, forthcoming) report for a sample of 129 soccer penalty shootouts from various seasons in ten different tournaments that teams kicking first win significantly more often than teams kicking second by a margin of 21 percentage points. Collecting data for 470...

We devise a new experimental game by nesting a voluntary contributions mechanism in a broader spectrum of incentive schemes. With it, we study tensions between egalitarianism, equity concerns, self-interest, and the need for incentives. In a 2x2 design, subjects either vote on or exogenously...

Teams often suffer from a free rider problem with respect to individual contributions. That putting teams into competition with each other can mitigate this problem is an important recent insight. However, we know little about how inequality in endowment between teams might influence this...

Private provision of public goods can only supplement government provision if individual actions affect the level of the public good. Cap-and-trade schemes reduce the overuse of common resources such as a stable climate or fish stocks by imposing a binding cap on total use by regulated agents....