This paper argues that an important group of labor market policies are complementary in the sense that the effect of each policy is greater when implemented in conjunction with the other policies than in isolation. This may explain why the diverse, piecemeal labor market reforms in many European...

Keller (1998) reexamines Coe and Helpman`s (1995) analysis of international R&D spillovers focusing on the weights used to define the foreign R&D capital stock. Keller creates random weights and shows that they give rise to positive estimates of international R&D spillovers, casting doubts on...