The paper discusses the consequences for the functioning of different pension systems of various types of socioeconomic changes, mainly demographic developments, variations in productivity growth and changes in real interest rates. Two of the pension systems have exogenous and four have...

With fixed costs of participating in the stock market, consumers with high income will participate in the stock market, but consumers with lower income will not participate. If a fully-funded defined-contribution social security system tries to exploit the equity premium by selling a dollar of...

This paper describes how three money's worth measures the benefit-to-tax ratio, the internal rate of return, and the net present value are calculated and used in analyses of social security reforms, including systems with privately managed individual accounts invested in equities. Declining...

It has long been suggested that trade unions take actions and favor public policies that reduce the quantity of labor so that union members might enjoy greater labor incomes. Can this explain the prevalence of generous public pension programs inducing retirement? I suggest not, by formalizing...

Does Social Security redistribute across cohorts? Or is it a program for purchasing the jobs' of the elderly? I formalize both models, showing how they have some predictions in common the most important of which is that generational accounts have the appearance of a pyramid scheme.' I also...

We present a detailed analysis of the incentives that Social Security provides for continued work at older ages. We do so using information on older males from the Health and Retirement Study over the 1980-1997 period to calculate the changes in the present discounted value of Social Security...

Based on explicit present value calculations, the paper criticizes the view that the PAYGO system wastes economic resources. In present value terms, there is nothing to be gained from a transition to funded system even though the latter offers a permanently higher rate of return. The sum of the...

This paper focuses on Social Security benefit claiming behavior, a take-up decision that has been ignored in the previous literature. Using financial calculations and simulations based on an expected utility maximization model, we show that delaying benefit claim for a period of time after...

The Social Security earnings test reduces benefits at a 33-50% rate once earnings pass a threshold amount - among the highest marginal tax rates in the economy. Previous research dismissed the importance of the earnings test but failed to take advantage of three changes in the earnings test...

I examine the effects of the introduction of the Spouse's Allowance to the Canadian Income Security (IS) system on the retirement behavior of couples. This program was effectively targeted at females in couples attempting to live on a single pension. It allowed qualifying spouses to receive the...