We investigate the consistency and stability of individual risk preferences by manipulating cognitive resources. Participants are randomly assigned to an experiment session at a preferred time of day relative to their diurnal preference (circadian matched) or at a non-preferred time (circadian...

We examine optimal incentives for charitable giving with a large-scale field experiment involving 26 charities and over 112,000 unique individuals. The price of giving is varied by offering a fixed match if the donation meets a threshold amount (e.g. "give at least $25 and the charity receives a...

Using a longitudinal study of 1,900 Peruvian children, I show that children who grow up in a household where mothers report experiencing domestic violence are more risk averse and have lower cognitive development. Risk attitudes are measured with an incentivized experiment. The effect of...

When group outcomes depend on minimal effort (e.g., disease containment, work teams, or indigenous hunt success), a classic coordination problem exists. Using a well-established paradigm, we examine how a common cognitive state (insufficient sleep) impacts coordination outcomes. Our data...

Individuals frequently exploit “flexibility" built into decision environments to give less. They use subjectivity to justify options benefiting themselves over others, they avoid information that may encourage them to give, and they avoid the ask itself. In this paper, we examine whether a...