Issu des travaux menés au cours des Rencontres économiques d'Aix-en-Provence de juillet 2009. Un état des lieux des problèmes que soulève la démographie mondiale, qui montre que deux paramètres joueront un rôle essentiel dans l'avenir : les ressources rares et le vieillissement....

The present phenomenon of the changing age-structure of the population will come to a head in the next few years with the considerable mass of those over sixty. Indeed, the behaviour of this growing sector of the population is at the centre of many issues, especially regarding inheritance...

While the empirical evidence tends to support some predictions of the life-cycle theory, a number of puzzles remain: an ageing-consumption, an ageing-saving, a saving-capitalisation and a saving-longevity puzzles have been put forward in the literature. This paper analyses the links between...

This paper analyses the impact of welfare systems and longevity on savings. It develops a life-cycle model embodying social transfers (health care and pension expenditures) and changes in longevity to determine the level of household savings. We simulated an aggregate saving equation and derived...

With population ageing, fiscal consolidation has become of paramount importance for euro area countries. Consolidation can be pursued in various ways, with different effects on potential growth, which itself will be dragged down by ageing. A dynamic general equilibrium model with overlapping...

With population ageing in a changing PAYG system context, our aim is to identify whether households take into account a retirement risk in their global accumulation behaviour. We define the retirement risk as a long term revenue risk linked with changes in the generosity of the PAYG system. We...