This paper studies the impact of the first effective medical treatment for an infectious disease -diphtheria antitoxin- on the historical health transition in the United States. Using an instrumental variable for local antitoxin adoption rates and information from approximately 1.6 million death...

The introduction of immigration quotas in the 1920s fundamentally changed U.S. immigration policy. We exploit this policy change to estimate the economic consequences of immigration restrictions for the U.S. economy. The implementation of the quota system led to a long-lasting relative decline...

The introduction of immigration quotas in the 1920s fundamentally changed U.S. immigration policy. We exploit this policy change to estimate the economic consequences of immigration restrictions for the U.S. economy. The implementation of the quota system led to a long-lasting relative decline...

In the 1920s, the United States substantially reduced immigrant entry by imposing country specific quotas. We compare local labor markets with more or less exposure to the national quotas due to differences in initial immigrant settlement. A puzzle emerges: the earnings of existing US-born...