This paper examines the determinants of illegal immigration in the United States from Mexico from 1976 to 1995. The main challenge in the empirical work is that the observations are not the number of individuals that attempt to enter the United States illegally, but rather the number of...

Manufacturing accounts for more than three-quarters of U.S. corporate patents. The competitive shock to this sector emanating from China's economic ascent could in theory either augment or stifle U.S. innovation. Using three decades of U.S. patents matched to corporate owners, we quantify how...