This paper studies optimal linear income taxation and redistributive social insurance when the former has the traditional labor distortion and the latter generates both ex ante and ex post moral hazard. Private insurance is available and individuals differ in labor productivity and in loss...

This paper studies the role of social insurance as a redistributive mechanism in the presence of an optimal (linear or general) income tax. It considers a second-best setting with two unobservable individual characteristics: ability, measured by the wage rate, and risk, measured by the...

Rochet (1989) showed that with distortionary income taxes, social insurance is a desirable redistributive device when risk and ability are negatively correlated. This finding is reexamined when ex post moral hazard and adverse selection are included, and under different informational...

The European population is living longer but retiring earlier. More and more individuals are spending an increasing fraction of their life-time relying on retirement benefits. At the same time, social security programs face mounting financial difficulties. The purpose of this paper is to explain...

It is often argued that implicit taxation on continued activity of elderly workers is responsible for the widely observed trend towards early retirement. In a world of laissez-faire or of first-best efficiency, there would be no such implicit taxation. The point of this paper is that when...

It is often argued that implicit taxation on continued activity of elderly workers is responsible for the widely observed trend towards early retirement. In a world of laissez-faire or of first-best efficiency, there would be no such implicit taxation. The point of this paper is that when...

The European population is living longer but retiring earlier. More and more individuals are spending an increasing fraction of their life-time relying on retirement benefits. At the same time, social security programs face mounting financial difficulties. The purpose of this paper is to explain...

Pour expliquer les départs précoces à la retraite, les économistes utilisent le concept de taxation implicite sur tout prolongement de l’activité. De là à proposer que l’on élimine cette taxe, il n’y qu’un pas à franchir. Cette contribution montre que si le système de retraite...

It is often argued that implicit taxation on continued activity of elderly workers is responsible for the widely observed trend towards early retirement. In a first best world, it is certainly possible to eliminate this taxation and have a social security scheme that is redistributive and...