This paper studies the impact of variations of a pay-as-you-go pension system on welfare in a stochastic overlapping generations model where compulsory public retirement savings coexist with private savings in assets and bonds. It is shown that, for a stationary population, any reduction of...

This paper studies the macroeconomic consequences of ageing in an overlapping-generations model with endogenous retirement. We study the behaviour of the economy when population ageing is driven by movements in fertility, changes in longevity, and a combination of both. To gauge the economic...