Recent years have witnessed the emergence of increasingly provocative anti-immigrant politicians in both Europe and the United States. We examine whether the 2016 election of Donald Trump, who made illegal immigration and border enforcement a centerpiece of his campaign, reduced illegal...

A critical immigration policy question is whether state and federal policy can deter undocumented workers from entering the U.S. We examine whether Arizona SB 1070, arguably the most restrictive and controversial state immigration law ever passed, deterred entry into Arizona. We do so by...

A critical immigration policy question is whether state and federal policy can deter undocumented workers from entering the U.S. We examine whether Arizona SB 1070, arguably the most restrictive and controversial state immigration law ever passed, deterred entry into Arizona. We do so by...

This paper studies the effects of mothers' long-term pre-conception exposure to local violence on birth outcomes. Using administrative data from Mexico and two different empirical strategies, our results indicate that mothers' long-term exposure to local violence prior to conception has...

While there is much concern about the role of race in police use of force, identifying causal effects is difficult. This is in part because of selection, and in part because researchers often observe only interactions that end in use of force, necessitating nontrivial benchmarking assumptions....

An estimated 40 percent of the world's garbage is burned in open-air fires, which are responsible for as much as half of the global emissions of some pollutants. However, there is little evidence on the health consequences of open-air waste burning. In this paper, we estimate the effect of in...

This paper examines how elementary-aged peers affect cognitive and non-cognitive outcomes from adolescence to adulthood. We identify effects by exploiting within-school and within-neighborhood variation in the proportion of peers with an arrested parent. Results indicate exposure to these peers...

Since 2000, ten states have enacted strict voter identification laws, which require that voters show identification in order for their votes to count. While proponents argue these laws prevent voter fraud and protect the integrity of elections, opponents argue they disenfranchise low-income and...