Nils Levsen focuses on the international diffusion of product and service innovations for elderly users. In particular, the existence and location of lead markets is being investigated. Lead markets are characterized by their early adoption of innovations and their influence on design choice in...

Disability, work and retirement -- New age thinking: alternative ways of measuring age, their relationship to labor force participation, government policies, and GDP / John B. Shoven -- Comment / Erzo F. P. Luttmer -- Work disability: the effects of demography, health, and disability insurance /...