This paper addresses the causes and dynamics of pay-as-you-go social security financial crises. Its main hypothesis is there exists a self-reinforcing vicious circle between the social security system, the fertility rate and labor supply. We argue that changes in the pay-as-you-go social...

This paper deals with the view that income elasticity of health care is larger than one, as argued by empirical results on the literature. We build a theoretical model that shows that endogenous demographic transition may play a fundamental role on this result. It is argued that families must...

This paper explores the causes of the social security financial crises. We indicate that the financial crisis might be endogenous to the social security system. The main idea is that the PAYG social security system might affect fertility and human capital's decisions and therefore, may...