We implement a randomized information intervention to enhance expectations about the productivity of effort. Our sample consists of an entire cohort of undergraduate students at a UK university. The intervention increases first-year exam grades and overall GPA, with an intention-to-treat effect...

We assemble a novel dataset to study the impact of male scarcity on marital assortative matching and other marriage market outcomes using the large shock that WWI caused to the number of French men. Using a difference-in-differences approach, we find that post war in regions with higher...

Little is known about the degree to which individuals are uncertain about their future Social Security benefits, how this varies within the U.S. population, and whether this uncertainty influences financial decisions related to retirement planning. To illuminate these issues, the authors present...

Traditional economic models assume that individuals have full information and act perfectly rationally. However, we show that there is considerable variation in financial literacy in the population and propose modeling the acquisition of financial knowledge in a human capital production...

The Social Security trust fund is predicted to be depleted by 2041. While there are several viable reform proposals to restore long-term solvency of the Social Security system, one important element that is critical to the success of any reform remains unknown: how will individuals respond to,...

We evaluate the consequences of prosecuting HIV+ people who expose others to the risk of infection. We show that the effect of aggressive prosecutions on the spread of HIV is a priori ambiguous. Aggressive prosecutions tax risky behavior and thus deter unsafe sex and limit the number of sexual...