We ask whether a PAYG-financed social security system is welfare improving in an economy with idiosyncratic and aggregate risk. We argue that interactions between the two risks are important for this question. One is a direct interaction in the form of a countercyclical variance of idiosyncratic...

We ask whether a PAYG-financed social security system is welfare improving in an economy with idiosyncratic and aggregate risk. We argue that interactions between the two risks are important for this question. One is a direct interaction in the form of a countercyclical variance of idiosyncratic...

In der bundesdeutschen Debatte über ein wünschenswertes Finanzausgleichssystem werden Effizienzaspekte weitgehend vernachlässigt. Es läßt sich jedoch zeigen, daß Finanzausgleichsregelungen Allokationsstörungen hervorrufen. Dies wird in dieser Arbeit anhand einer theoretischen Analyse...

This paper discusses design errors in public pension systems, using Hungary as an illus-tration. When the communist political and economic system was replaced by democracy and market economy, the subsequent governments had even greater difficulties in designing consistent pension reforms than...

A basic function of public pension systems is to guarantee a satisfactory old-age income for short-sighted low earners. In proportional (i.e., earnings-related) systems, this requires a sufficiently high contribution rate. At the same time, there should be a cap on the pension contribution base...

This paper analyzes the interconnections of underreported earnings, savings and oldage pension with the help of a most simple, elementary model. The workers can be divided into three groups: 1) well-paid who report their full earnings, 2) well-paid who report only the minimum earnings (evaders)...

To defend myopic workers against themselves, the government introduces a mandatory system but to help savers, it adds tax-favored retirement accounts. In a very simple model, where benefits are proportional to contributions, we compare three extreme systems: (i) the pure mandatory system, (ii)...

Demographic change has differential impacts on the welfare of current and future generations. In a simple closed economy, aging -- a relative scarcity of young workers -- increases wages, increasing the welfare of the young. At the same time, population aging will reduce rates of return to...