We report a puzzling pair of facts concerning the organization of science. The concentration of research output is declining at the department level but increasing at the individual level. For example, in evolutionary biology, over the period 1980 to 2000, the fraction of citation-weighted...

Pensions and contemporary socioeconomic change / Assar Lindbeck -- Different approaches to pension reform from an economic point of view / Jonathan Gruber, David A. Wise -- Labor mobility, redistribution, and pension reform in Europe / Alain Jousten, Pierre Pestieau -- France: the difficult path...