If there is a means tested basic income for old age, households will tend to reduce precautionary savings to an inefficiently low level. This might serve as a justification for a public pension system. In a representative agent framework, indeed, the introduction of a compulsory pension s ystem...

A model is presented that explains the mix between funded and unfunded pension systems. It turns out that total pension and the relative shares of the two systems may be explained and are determined by the population growth rate, technological growth, the time-preference discount rate, the...