This paper analyzes a social security policy with public debt in an overlapping generations growth model. In particular, the paper considers a situation in which population aging causes a heavy burden of social security payments where public debt is issued by the government to finance the...

This paper develops a two-period overlapping-generations model with environmental externalities and uncertain lifetimes, and studies how two sources of population aging, greater longevity and a lower rate of population growth, affect the politically determined environmental tax and the quality...

How does aging affect the environment? We analyze this question using an overlapping generations model featuring uncertain lifetimes and environmental externalities. We show that whether aging is harmful to the environment depends on the curvature of utility function, which is measured by the...