"One of the most difficult problems in the social sciences is measuring the policy climate in societies. Prior to the 1930s the vast majority of labor regulations in the U.S. were enacted at the state level. In this paper we develop several summary measures of labor regulation that document the...

"After a period of regulatory changes in the early 1980s we are faced with "new" freight transportation labor markets in the U.S. Using data from the 1984-1999 Current Population Survey, we examine trends in the wages of workers within freight transportation, with a focus on wage differentials...

Legal rules governing the employer-employee relationship are many and varied. Economic analysis has illuminated both the efficiency and the effects on employee welfare of such rules, as described in this paper. Topics addressed include workplace safety mandates, compensation systems for...