Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper shows the effects on a pay-as-you-go pension system of the demographic change in the standard overlapping generations model. Firstly, we consider a setting with exogenous fertility and then a model with endogenous fertility. In both cases, population aging due to increased longevity implies a reduction in pensions payouts. Copyright Springer-Verlag Berlin Heidelberg 2014