This paper presents the results of a study of productivity growth and R&D in the 1970s using data on narrowly defined 'business units within a firm. Estimates are developed under different assumptions about technology ,industry effects, and changes in the return to R&D over time. The R&D data...

We live in a dynamic economic and commercial world, surrounded by objects of remarkable complexity and power. In many industries, changes in products and technologies have brought with them new kinds of firms and forms of organization. We are discovering news ways of structuring work, of...

This paper analyzes the dynamics of youth unemployment. Three broad conclusions emerge. First, the problem of youth joblessness extends beyond the unemployed. We find that over one-half of youth unemployment spells end in labor force withdrawal. Much of youth non-employment is not picked up in...