"Bien qu'intimement liés, les concepts de croissance, de population et de protection sociale font montre d'évolutions disparates. La situation actuelle est en vérité contrastée: dans le monde développé, la population stagne ou régresse, la croissance est molle et la protection sociale...

Welfare states redistribute both between individuals reducing annual inequality and over the life-cycle insuring against income risks. But studies measuring redistribution often focus only on a one-year period. Using German SOEP data from 1984 to 2009, long-term inequality over a 20-year period...

Die gesetzliche Rentenversicherung ist nach dem Prinzip der Teilhabe-Äquivalenz aufgebaut. Dies soll bewirken, dass die Rentenansprüche in einer bestimmten Relation zu den gezahlten Beiträgen stehen, also vorrangig keine Umverteilung stattfindet. In Wahrheit gibt es jedoch eine massive...

We model the optimal reaction of a public PAYG pension system to demographic shocks. We compare the ex-ante first best and second best solution of a Ramsey planner with full commitment to the outcome under simple third best rules that mimic the pension systems observed in the real world. The...

In several OECD countries, public pay-as-you-go financed pension systems have undergone major reforms in which future retirement benefit promises have been scaled down. A consequence of these reforms is that especially in countries with a tight tax-benefit linkage, the retirement benefit claims...