During the 1980s, a period in which the average level of real wage rates was roughly stagnant, there were large changes in the structure of relative wages, most notably a huge increase in the relative wages of highly educated workers. This paper attempts to assess the power of several...

One long-standing hypothesis about science and engineering labor markets is that the supply of highly skilled workers is likely to be inelastic in the short run. We consider the market for computer scientists and electrical engineers (IT workers) and the evolution of wages and employment through...

Applicants for Social Security disability benefits who fail to pass the medical screening form a natural "control" group for beneficiaries. Data drawn from the 1972 and 1978 surveys of the disabled done for the Social Security Administration show that fewer than 50 percent of rejected male...

A new data set for approximately 1,000 largest manufacturing firms inthe United States during 1957-77 is analyzed using a standard production function framework augmented by the addition of R&D "capital" and "mix" variables. The results indicate that R&D continued to contribute to productivity...