Historical accounts suggest that Jewish émigrés from Nazi Germany revolutionized U.S. science. To analyze the émigrés' effects on chemical innovation in the U.S. we compare changes in patenting by U.S. inventors in research fields of émigrés with fields of other German chemists. Patenting...

Economic studies typically underestimate incremental changes in consumer goods and design innovations that enhance allocative efficiency and structural dynamics. This paper assesses over 12,000 innovations by female patentees and participants in industrial fairs and prize-granting institutions...

Capital deepening (at least to the extent this can be measured) accounts for a large share of the variations in performance; increasingly during the past 25 years, this has meant ICT capital deepening. However, the capital contribution to growth varies considerably over time and across the four...

Studies of early U.S. growth traditionally have emphasized real-sector explanations for an acceleration that by many accounts became detectable between 1815 and 1840. Interestingly, the establishment of the nation's basic financial structure predated by three decades the canals, railroads, and...

Innovation policy can be a crucial component of governments' responses to crises. Because speed is a paramount objective, crisis innovation may also require different policy tools than innovation policy in non-crisis times, raising distinct questions and tradeoffs. In this paper, we survey the...

A large body of evidence finds that relative mobility in the US has declined over the past 150 years. However, long-run mobility estimates are usually based on white samples and therefore do not account for the limited opportunities available for non-white families. Moreover, historical data...

We investigate the extent to which conflicts between Native American tribes and U.S. Army troops were caused by poor economic conditions in Europe from 1869 to 1890. We hypothesize that contractions in economic activity pushed many Europeans to move to the western United States in search of...

The US Civil War ended in 1865 without the distribution of land or compensation to those formerly enslaved--a decision often seen as a cornerstone of racial inequality. We build a dataset to observe Black households' landholdings in 1880, a key component of their wealth, alongside a sample of...

Large and rapid upswings in illicit drug use display similar properties to infectious disease epidemics. In this chapter, we review research to understand what causes drug epidemics and how they end. Drug market actors are subject to both positive and negative reinforcement that lead to rapid,...