The demographic database of Eurostat and of Us Census of Bureau are explored and the main facts are extracted and described. This paper is completely self-standing but is also part of a more general analysis dedicated to the functioning and sustainability of pay-as-you-go to finance the welfare...

The demographic database of Istat (www.istat.it)is explored and the main facts are extracted and described, both at the aggregate national level as well as at the regional one. This paper is completely self-standing but, at the same time, poses the basis for a more general analysis that will be...

Social security system old age insurance systems are devices for the sharing of income risks of elderly people with others. Risks can be shared intergenerationally (with the young of the same country), intragenerationally (with other elderly of the same country) or internationally (with...

The paper examines formation and sustainability of Pay-As-You-Go pension systems within the consequences of the ageing of population. Parametric reforms rather than institutional transformation of Pay-As-You-Go systems into funded pension schemes are advocated. Following the modern theories of...

The Non-financial (Notional) Defined Contribution (NDC) PAYGO pension scheme is a recent innovation and its generic dimensions have not previously been explored in a coherent context. This paper does this. It derives and analyzes the demographic, economic and distributional properties of NDC....

The purpose of this study is to explore the effects of exogenous social security system parameters on welfare. The set up is an overlapping generations economy, with skills heterogeneity, which distinguishes consumers between high and low skilled. The lowskilled receive an extra supplement...