According to UNESCO, one-third of the world’s youths are victims of bullying, which deteriorates academic performance and mental health, and increases suicide ideation and the risk of committing ...

We do so using a synthetic difference-in-differences design that leverages variation from the 2022 Dobbs decision, which allowed states to ban abortion, and population flows based on change-of-address ...

The Metropolitan Council for Educational Opportunity (METCO) program in Boston is a voluntary program for urban students and suburban school districts, that busses non-White students from Boston to ...

We investigate the regulation of labor markets through employment laws, collective bargaining laws, and social security laws in 85 countries. We find that richer countries regulate labor less than ...

Cities are often described as engines of economic growth. We assess this statement quantitatively. We focus on two mechanisms: a static agglomeration effect that makes production in bigger cities more ...

We explore how socio-economic background shapes academia, collecting the largest dataset of U.S. academics’ backgrounds and research output. Individuals from poorer backgrounds have been severely ...

We develop a parsimonious model of innovating firms rich enough to confront firm-level evidence. It captures the dynamic behavior of individual heterogenous firms, describes the evolution of an ...

This study explores this question using data from the 2015-2021 State Youth Behavior Surveys. We find that a one-dollar (in 2021$) per mL of e-liquid increase in ENDS taxes reduces the likelihood of ...

This paper provides a critical look at recent empirical work in international trade theory. The paper addresses the issue of why empirical work in international trade has perhaps not been as ...

This paper explores past episodes of technological disruption in the US labor market, with the goal of learning lessons about the likely future impact of artificial intelligence (AI). We measure ...

This essay discusses some things we have learned about markets, in the process of designing marketplaces to fix market failures. To work well, marketplaces have to provide thickness, i.e. they need to ...

We investigate conditions sufficient for identification of average treatment effects using instrumental variables. First we show that the existence of valid instruments is not sufficient to identify ...