Exporting abroad is much harder than selling at home, and overcoming hurdles to exporting takes time. Our goal is to identify specific barriers to exporting and to measure their importance. We develop a model of firm-level export dynamics that features costly customer search, network effects in...

Previous studies for developed countries show negative short-run impacts of automation on employment and earnings. In this paper, we instead examine whether automation by a key trading partner can hurt workers in a developing country. We specifically focus in Colombia's labor market, and how the...

Does foreign military assistance strengthen or further weaken fragile states facing internal conflict? Aid may strengthen the state by bolstering its repressive capacity vis-à-vis armed non-state actors, or weaken it if resources are diverted to these very groups. We examine how U.S. military...

We propose a framework to explain why some societies may end up with different constitutional solutions to the problem of maintaining order in the face of self-interested behavior. Though the salient intellectual tradition since Hobbes has focused on how institutional design is used to eradicate...

An unresolved question concerning post-Civil War U.S. industrialization is the degree to which import tariffs protected domestic manufacturers from foreign competition. This paper considers the impact of import tariffs on the domestic pig iron industry, the basic building block of the entire...

This paper utilizes a survey of the US manufacturing firms from 1832 to investigate the structure of manufacturing investment during early industrialization. Although several manufacturing industries, such as cotton textiles, depart from the pattern, most appear to have devoted the hulk of their...

The American Northeast industrialized rapidly from about 1820 to 1850, while the South remained agricultural. Industrialization in the Northeast was substantially powered during these decades by female and child labor, who comprised about 45% of the manufacturing work force in 1832. Wherever...

Trends in BMI values are estimated by centiles of the US adult population by birth cohorts 1886-1986 stratified by ethnicity. The highest centile increased by some 18 to 22 units in the course of the century while the lowest ones increased by merely 1 to 3 units. Hence, the BMI distribution...

The trend in the BMI values of the US population has not been estimated accurately because time series data are unavailable and because the focus has been on calculating period effects. In contrast to the prevailing strategies, we estimate the trend and rate of change of BMI values by birth...