Studies have estimated the relationship between psychological stress and birth weight by exploiting natural disasters and terrorist attacks, both of which could affect fetal health through other channels. Using data from the National Vital Statistics System for the period 1969-2004, we estimate...

Military service is an important vehicle through which young Americans invest in their human capital. Using internal military data, we show that county-level exposure to U.S. combat casualties during the Iraq and Afghanistan wars decreased the supply of new soldiers in that county, and changed...

Using Census and CPS data, we show that U.S.-born Mexican Americans who marry non-Mexicans are substantially more educated and English proficient, on average, than are Mexican Americans who marry co-ethnics (whether they be Mexican Americans or Mexican immigrants). In addition, the non-Mexican...

Using microdata from the 2000 U.S. Census and from recent years of the Current Population Survey (CPS), we investigate whether selective intermarriage and endogenous ethnic identification interact to hide some of the intergenerational progress achieved by the Mexican-origin population in the...

Using microdata from the 2000 U.S. Census, we analyze the responses of Mexican Americans to questions that independently elicit their ethnicity (or Hispanic origin) and their ancestry. We investigate whether different patterns of responses to these questions reflect varying degrees of ethnic...

Using microdata from the 2000 U.S. Census, we analyze the responses of Mexican Americans to questions that independently elicit their "ethnicity" (or Hispanic origin) and their "ancestry". We investigate whether different patterns of responses to these questions reflect varying degrees of ethnic...