"This paper extends the concept of star scientist to all areas of science and technology. We follow 1,838 stars' careers 1981-2004, using their publication history to locate them each year. The number of stars in a U.S. region or in one of the top-25 science and technology countries has a...

I study the human capital development and firm-worker matching processes for PhD economists.This group is useful for this purpose because the types of jobs they hold can be easily categorized and they have an observable roductivity measure (that is,publications.)I derive a two-period model to...