Using a large, individual-level wage data set, we examine the impact of a major technological innovation – the steam engine – on skill demand and the wage structure in the merchant shipping industry. We find that the technical change created a new demand for skilled workers, the engineers,...

"Using a large, individual-level wage data set, we examine the impact of a major technological innovation -- the steam engine -- on skill demand and the wage structure in the merchant shipping industry. We find that the technical change created a new demand for skilled workers, the engineers,...

Ten states, beginning with Texas and California in 2001, have passed laws permitting undocumented students to pay the in-state tuition rate - rather than the more expensive out-of-state tuition rate - at public universities and colleges. We exploit state-time variation in the passage of the laws...