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 einem Europa integrierter Güter- und Faktormärkte stehen die nationalen Systeme Sozialer Sicherung zunehmend auf dem Prüfstand. Mit der Schaffung des gemeinsamen Marktes wurden die individuellen Verfügungsrechte verändert. In diesem Essay werden diese Änderungen bezüglich den Zielen...

Intergenerational redistribution is one of the major aims of national welfare states that have to prove their reliability in a world of internationally integrated goods and factor markets. In this paper, we analyse the conditions for the existence of steady-state equilibria and the (Pareto-)...

Institutional change is guided by rules. In the European Union these rules are given by Art. 250-252 of the Treaty of Amsterdam. These articles define the actors and rules that bring about changes in policies in the European Union. We analyze these articles as games in extensive form and...