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...

This study compares labor and total factor productivity (TFP) in France, Japan, the United Kingdom and the United States in the very long (since 1890) and medium (since 1980) runs. During the past century, the United States has overtaken the United Kingdom and become the leading world economy....

This paper examines shifts over time in the relative demand for skilled labor in the United States. Although de-skilling in the conventional sense did occur overall in nineteenth century manufacturing, a more nuanced picture is that occupations "hollowed out": the share of "middle-skill" jobs -...

We develop a new methodology for quantifying the tasks undertaken within occupations using over 3,000 verbs from more than 12,000 occupational descriptions in the Dictionary of Occupational Titles (DOTs). Using micro-data from the United States from 1880-2000, we find an increase in the...

This paper summarizes the development of private annuity markets in the United States. Annuities constituted a small share of the U.S. insurance market until the 1930s, when two developments contributed to their growth. First, concerns about the stability of the financial system drove investors...

I study the impact of transportation on health in the rural US, 1820–1847. Measuring health by average stature, I find that greater transportation linkage, as measured by market access, in a cohort's county-year of birth had an adverse impact on its health. A one-standard deviation increase in...

Under the Civil War pension act of 1862, the widow of a Union Army soldier was entitled to a pension if her husband died as a direct result of his military service; however, she lost her right to the pension if she remarried. I analyze the effect this had on the rate of remarriage among these...