depreciation when knowledge of technologies becomes obsolete. After a shock in technology, the worker depreciates on his human …

We analyze how HIV-knowledge influences condom use across the sexes. The empirical work is based on a household survey … questions on knowledge of the existence of HIV, HIV prevention, HIV stigma, intended pregnancy, and risk perceptions of engaging … in unprotected sex. We observe a large HIV knowledge gap between males and females. Moreover, across the sexes different …

creation of new ideas, knowledge spillovers, entrepreneurship, and economic growth. In this paper we measure the impact of the … data on 170 regions in Europe (NUTS 2 level) for the periods 1991-1995 and 2001-2005. Innovation outcomes are measured by … diffusion of innovation activity, and the spatial selectivity of immigrants' location choices, we take account of spatial …

Innovation and technological change are central to the quest for regional development. In the globally …-connected knowledge-driven economy, the relevance of agglomeration forces that rely on proximity continues to increase, paradoxically … structure characterised by its extent of specialisation, competition and diversity, to yield innovation and productivity growth …