We use a long panel data set for four entry cohorts into an internal labor market toanalyze the effect of age on the probability to participate in different training measures.We find that training participation probabilities are inverted u-shaped with age and thatlonger training measures are...

Conventional R&D-based growth theory suggests that productivitygrowth is positively correlated with population size or population growth,an implication which is hard to see in the data. Here we integrate R&D-basedgrowth into a unied growth setup with micro-founded fertility and...