Pay-as-you-go (PAYG) pension schemes can contribute to better intergenerational risk-sharing and diversification. However, different variants of PAYG schemes entail different properties in these respects. In a stochastic 2-OLG model we compare PAYG schemes with fixed contribution rates and such...

Young people of working age tend to be particularly prone to labor market inefficiencies that keep their wages excessively high and their employment excessively low. These inefficiencies are usually magnified through unemployment benefit systems. This paper examines how these problems can be...

For pay-as-you-go financed pension systems, claims may be calculated according to individual contributions (income) or the number of children of a family. We analyse the optimal structure of these parameters in a model with endogenous fertility. It is shown that for both structural determinants...

In this paper we aim to understand the role a welfare state can play in stimulating risky but profitable activities like investment in education, and in reducing income inequality. We analyze how unemployment benefits may affect investment in education when the latter is characterized by...

This paper analyzes a social security policy with public debt in an overlapping generations growth model. In particular, the paper considers a situation in which population aging causes a heavy burden of social security payments where public debt is issued by the government to finance the...

The purpose of this paper is to study intergenerational optimal resources sharing when the social planer can choose the retirement age in addition to consumptions and investment. We use the extension of the Diamond analysis by Hu [1979] that incorporates endogenous retirement age. We found that...

Different versions of pay-as-you-go public pension programs may have entirely different effects on the intergenerational distribution of income risk. If the pension benefit is a fixed proportion of previous labor income, a pay-as-you-go program increases the net income risk of all generations....

This paper analyzes both the formation of long-run migration incentives and the consequences of a regime change from "autarky" to "free migration" in an overlapping-generations framework with two countries. Under autarky the countries may differ with respect to their aggregate savings rate or...

The issue is addressed whether assistance to persons in need can be left to the `family' and the `community'. In that case people depend on their social networks. The support a person receives through a given network of social ties is examined. However, ties are diverse and subject to change. By...

Employing an overlapping generations endogenous growth model in which parents derive utility from having children and, additionally, expect children to support them in old age, this paper explores the interrelation between growth, fertility, and the size of pay-as-you-go financed public...