This paper analyses a model of overlapping generations in which agents who do not participate in th elabor market are unable to borrow. Thus an increase in a fully funded pension raises aggregate savings even with a fixed participation rate since private savings are not crowded out one-for-one....

The transition from unfunded pensions may impose a double burden on a transitional generation, which must both pay taxes to finance current pension liabilities and save for their own retirement. There are also economic gains which will accrue to future generations from increased rates of savings...