Using a unique longitudinal representative survey of both manufacturing and non-manufacturing businesses in the United States during the 1990's, I examine the incidence and intensity of organizational innovation and the factors associated with investments in organizational innovation. Past...

In this paper, we examine what groups of children are served by core childhood social-safety net programs—including Medicaid, EITC, CTC, SNAP, and AFDC/TANF—and how that's changed over time. We find that virtually all gains in spending on the social safety net for children since 1990 have...

This paper analyzes the implications of tax policy for the accumulation of human and physical capital and for the overall productivity level of the economy. A comprehensive income tax, applying to both labour income and capital income. discriminates against investments in human capital relative...

An essential feature of schooling is not only that it occurs in a different site than most on-the-job training but also that it is more intensive. That is, a smaller proportion of gross potential earnings is sacrificed in on-the-job training than in schooling. In estimating human capital...

Over the last twenty years the wage-education relationships in the US and Germany have evolved very differently, while the education composition of employment has evolved in a surprisingly parallel fashion. In this paper, we propose and test an explanation to these conflicting patterns. The...