Does the lack of wealth constrain parents' investments in the human capital of their descendants? We conduct a fifty-year followup of an episode in which such constraints would have been plausibly relaxed by a random allocation of wealth to families. We track descendants of those eligible to win...

In 2000 Census microdata, various outcomes of second-generation immigrants are related to their parents’ age at arrival in the United States, and in particular whether that age fell within the "critical period" of language acquisition. We interpret this as an effect of the parents’...

This study contains evidence on the importance of chronic disease burden on human-capital and fertility decisions in developing regions. The episode analyzed is the eradication of hookworm disease in the American South (c. 1910). In previous work (Bleakley 2002), it was shown that the hookworm...

How much does disease depress development in human capital and income around the world? I discuss a range of micro evidence, which finds that health is both human capital itself and an input to producing other forms of human capital. I use a standard model to integrate these results and suggest...

The authors examine portage sites in the U.S. South, Mid-Atlantic, and Midwest, including those on the fall line, a geomorphological feature in the southeastern U.S. marking the final rapids on rivers before the ocean. Historically, waterborne transport of goods required portage around the falls...

We test whether the effect of English proficiency differs between Hispanic and non-Hispanic immigrants. Using 2000 U.S. Census microdata on immigrants who arrived before age 15, we relate labor market, education, marriage, fertility and location of residence variables to their age at arrival in...

Are U.S. immigrants' English proficiency and social outcomes the result of their cultural preferences, or of more fundamental constraints? Using 2000 Census microdata, we relate immigrants' marriage, fertility and residential location variables to their age at arrival in the U.S., and in...

Many cities in North America formed at obstacles to water navigation, where continued transport required overland hauling or portage. Portage sites attracted commerce and supporting services, and places where the falls provided water power attracted manufacturing during early industrialization....

Are the English proficiency and social outcomes of US immigrants the result of their cultural preferences or of more fundamental constraints? Using 2000 census microdata, we relate the English proficiency, marriage, fertility, and residential location variables of immigrants to their age at the...

Workers change occupation and industry less often in more densely populated areas, a relationship that had not been previously reported. This reduced-form result is robust to standard demographic controls, as well as to including aggregate measures of human capital and sectoral mix. Analysis of...