We investigate the speed at which clusters of invention for a technology migrate spatially following breakthrough inventions. We identify breakthrough inventions as the top one percent of US inventions for a technology during 1975-1984 in terms of subsequent citations. Patenting growth is...

Talent is the most precious resource for today's knowledge-based economy, and a significant share of the U.S. skilled workforce in technology fields is foreign born. The United States has long held a leading position in attracting global talent, but the gap to other countries is weakening....

Talent is a critical resource for today's knowledge economy. The United States has benefited substantially from high-skilled migration since the 1970s, especially with respect to innovation and entrepreneurship. This chapter reviews data on these immigrant contributions, and it discusses the...

The global race for talent is on, with countries and businesses competing for the best and brightest. Talented individuals migrate much more frequently than the general population, and the United States has received exceptional inflows of human capital. This foreign talent has transformed U.S....

We document a Kuznets curve for construction productivity in 20th-century America. Homes built per construction worker remained stagnant between 1900 and 1940, boomed after World War II, and then plummeted after 1970. The productivity boom from 1940 to 1970 shows that nothing makes technological...