We examine the effect of source-based capital taxation on capital accumulation in countries with endogenous fertility and free international capital mobility. When fertility is constant, a tax cut accelerates domestic capital accumulation through international arbitrage and exerts negative...

Investigating the effects of population aging on fertility and economic growth, we show that an increase in life expectancy lowers the fertility rate and raises life-cycle savings, and that a pay-as-you-go social security does not reverse the effect on fertility.