This paper presents a continuous time overlapping-generation (OLG) model which generalizes the Blanchard-Buiter-Weil model and clarifies the relationships between dynastic previous termaltruismnext term, the length of planning horizons, and dynamic inefficiency. Our main innovation relies on the...

Macrodynamic models with finite lifetime and selfish individuals may feature (dynamically) inefficient equilibria, while models with infinite lifetime and altruistic individuals cannot. Do strong intergenerational altruism and high life expectancy prevent the occurence of inefficient equilibria?...

This paper presents a continuous time overlapping-generation (OLG) model which generalizes the Blanchard-Buiter-Weil model and clarifies the relationships between dynastic altruism, the length of planning horizons, and dynamic inefficiency. Our main innovation relies on the introduction of...

Macrodynamic models with finite lifetime and selfish individuals may feature (dynamically) inefficient equilibria, while models with infinite lifetime and altruistic individuals cannot. However, savings motives increase with parental altruism and lifetime expectancy, thereby favoring...

Our aim is to explain why the pattern of relative unemployment rates by education groups was non monotonic in most of the OECD countries. In a two-sector matching model, a simple unexpected productivity shock biased against unskilled labor can replicate the observed dynamics. Effects of...

We consider the search behaviour of an infinite lifetime worker whose expected matching gains are assumed to be decreasing over the spell of unemployment. The search effort is linked positively to future earnings and negatively to the worker's reservation wage. We show that this may give rise to...

Dans le cadre d'un modele d'appariement a la Diamond-Pissarides cet article analyse les effets macroeconomiques d'une elevation reguliere du capital humain des nouvelles generations entrant sur le marche du travail. Ces effets concernent la formation des salaires, le chomage et l'exclusion des...

In this paper, the author reveals an equivalence property between Blanchard's perpetual youth model and the imperfect altruism issue. This essentially requires that the insurance system disappears, and the the bequest nonegativity constraint does not bind. The resulting equilibrium is unique and...

La literature recente sur l'articulation chomage-education a pour proprietes que l'effort educatif (i) croit avec le taux de sortie du chomage et (ii) a des rendements croissants. Le role de l'Etat consiste alors a inciter les agents a accroitre l'intensite de leur formation pour reduire le taux...

We consider the labour market implications of skill decay. State dependence in individual hazards emerges from the joint result of (optimal) hiring and search behaviours. We shed light on an original externality according to which firms' profits increase with the valuation of vacancies....