Using multiple datasets from different time periods, we document declines in academic time investment by full-time college students in the United States between 1961 and 2003. Full-time students allocated 40 hours per week toward class and studying in 1961, whereas by 2003 they were investing...

This paper estimates treatment size and status specific peer effects that are not detected by widely-used approaches to the estimation of spillovers. In a field experiment using university students, we find that subjects who have been incentivized to exercise increase gym usage more if they have...

It is difficult to assess the extent to which course evaluations reflect how much students truly learn from a course because valid measures of learning are rarely available. This paper makes use of a unique setting in which students take a common, high-stakes post-test which is centrally graded...

To identify the causal relationship between health care spending and infant health, we introduce a new instrument: the number of infants born on a given day in a given hospital. The thought experiment is on a crowded day at-risk infants receive reduced care because resource constraints are...

Most theories of occupational regulation posit that the effects of occupational licensure regulations—laws that require members of an occupation to possess a license in order to practice—increase with time. In this paper, we take advantage of a quasi-experiment afforded by the fact...

Using multiple data sets from different time periods, we document declines in academic time investment by full-time college students in the United States between 1961 and 2003. Full-time students allocated 40 hours per week toward class and studying in 1961, whereas by 2003, they were investing...

Using multiple datasets from different time periods, we document declines in academic time investment by full-time college students in the United States between 1961 and 2003. Full-time students allocated 40 hours per week toward class and studying in 1961, whereas by 2003 they were investing...

In 1961, the average full-time student at a 4-year college in the U.S. studied about 24 hours per week, while his modern counterpart puts in only 14 hours a week. Students now study less than half as much as universities claim to require. This dramatic decline in study times occurred for...