This paper develops a tractable stochastic overlapping generations model to analyze the equilibrium equity premium and growth rate of the capital stock in the presence of a defined-benefit Social Security system. If the Social Security Trust Fund increases the share of its portfolio held in...

This paper details a method for implementing personal retirement accounts (PRAs) as a part of Social Security reform. The approach described here answers the following questions: how funds are collected and credited to each participants' retirement account; how money is invested; and how funds are...

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, that...