Social experiments are powerful sources of information about the effectiveness of interventions. In practice, initial randomization plans are almost always compromised. Multiple hypotheses are frequently tested. "Significant" effects are often reported with p-values that do not account for...

This paper examines two questions: how will the labor force change over the next 20 years, and can social policy significantly alter its size and shape. In the last twenty years, the overall labor force grew by 35 percent and the so-called prime age workforce those aged 25-54 grew by a...

We carry out a comparative analysis of inequality of opportunity (IOp) for long-run income in Denmark and the United States. We adopt a luck-egalitarian understanding of IOp, use high-quality administrative data, and rely on highly improved methods. These include novel identification assumptions...

Does diversity affect people's perceptions of income distribution and their preferences for redistribution? I leverage variation from a Colombian financial aid reform boosting the share of low-income students at an elite university. Combining college records and original survey data, I study how...

Applications to elite US colleges have more than doubled over the past 20 years, with little change in the number of available seats. We examine how this increased competition has affected the admissions advantage that legacies and athletes (LA) receive. Using data on Harvard applications over...

The lawsuit Students For Fair Admissions v. Harvard University provided an unprecedented look at how an elite school makes admissions decisions. Using publicly released reports, we examine the preferences Harvard gives for recruited athletes, legacies, those on the dean's interest list, and...

There are two broad views as to why people stay poor. One emphasizes differences in fundamentals, such as ability, talent or motivation. The other, the poverty traps view, differences in opportunities which stem from access to wealth. To test between these two views, we exploit a large-scale,...

What is the impact of warfare on inequality and the social contract? Using local data on bombing, the evolution of wealth inequality and vote shares for the Labour Party in England around World War II we establish two results. First, on average, we find no impact of bombing on inequality....

Between 1869 and the early 1900s state governments regulated safety in mines and factories and reformed the liability for accidents. Reformers sought to reduce workers' risks and ensure that those involved in accidents received reasonable medical care and compensation for lost earnings. Yet...

We provide substantial evidence that placing child care provider inspection and complaint reports on the Internet changed the behavior of child care inspectors and improved the quality of child care received by low-income children. We believe that these results were forthcoming in part because:...