This paper studies the relationship between mass immigration in Argentina and the rise of Juan D. Perón (the iconic Argentine populist leader) in the mid-20th century. We find no evidence suggesting that mass immigration to Argentina from 1876 through 1925 explains Peronism directly or...

Using a repeated cross-section of more than 258,000 residents of 39 European countries covering the period from 1990 to 2012, I study the impact of knowing different foreign languages on income and (for the first time) on unemployment. To help identify causal effects, I also employ a novel...

Most empirical studies have estimated a positive union-nonunion "injury gap," suggesting that unionized workers are more likely to have a nonfatal occupational injury than their nonunion counterparts. Using individual-level panel data for the first time, I study several explanations for this...