In this paper we investigate the optimal scale of pay-as-you-go social security in a dynastic family model with human capital externalities, fertility and endogenous growth. Human capital externalities reduce the return to human capital investment and hence lead to under-investment in human...

We explore optimal health subsidies in a dynastic model with health externalities to productivity that cause low health spending, productivity, longevity, savings and labor but high fertility. Public or firms’ health subsidies increase health spending, longevity and productivity and decrease...

This paper considers socially optimal government policies in a dynastic family model with physical capital, human capital, endogenous fertility and positive spillovers from average human capital. Such spillovers reduce human capital investment but raise fertility from their social optimum. We...