We measure the extent to which skilled immigrants increase innovation in the United States. The 2003 National Survey of College Graduates shows that immigrants patent at double the native rate, due to their disproportionately holding science and engineering degrees. Using a 1940-2000 state...

Following the unification of Germany in 1990, eastern wages and unemployment both rose rapidly. I demonstrate that rising wages reduced eastern emigration greatly, while rising unemployment had little effect. This reflects the behavior of the young, who are very sensitive to source region wages,...