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...

G<sc>laeser</sc> E. L., P<sc>onzetto</sc> G. A. M. and T<sc>obio</sc> K. Cities, skills and regional change, <italic>Regional Studies</italic>. One approach to urban areas emphasizes the existence of certain immutable relationships, such as Zipf's or Gibrat's law. An alternative view is that urban change reflects individual responses to...

Party platforms differ sharply from one another, especially on issues with religious content, such as abortion or gay marriage. Given the high return to attracting the median voter, why do vote-maximizing politicians take extreme positions? In this paper we find that strategic extremism depends...