This paper studies the optimal non linear income tax of couples. We build a general unitary model of labor supply and allow multidimensional heterogeneity in a discrete type framework. We concentrate our analysis on the resulting intra-family labor allocation of labor supplies and show that this...

This paper studies the design of couples’ income taxation. Consumption and labor supply decisions within the couple are made by maximizing a weighted sum of the spouses’ utilities; bargaining weights are given but specific to each couple. The information structure and labor supply decisions...

This paper studies the design of health insurance with ex post moral hazard, when there is imperfect competition in the market for the medical product. Various scenarios, such as monopoly pricing, price negotiation or horizontal differentiation are considered. The insurance contract specifies...

We study exchanges between three overlapping generations with non-dynastic altruism. The middleaged choose informal care provided to their parents and education expenditures for their children. The young enjoy their education, while the old may leave a bequest to their children. Within each...

The Ramsey tax problem examines the design of linear commodity taxes to collect a given tax revenue. This approach has been seriously challenged by Atkinson and Stiglitz (1976) who show that (under some conditions) an optimal income tax makes commodity taxes redundant. In the meantime, the...

This paper studies the determination of informal long-term care (family aid) to dependent elderly in a worst case scenario concerning the “harmony” of family relations. Children are purely selfish, and neither side can make credible commitments (which rules out efficient bargaining). The...

We show that once interfamily exchanges are considered, Becker’s rotten kids mechanism has some remarkable implications that have gone hitherto unnoticed. Specifically, we establish that Cornes and Silva’s (1999) result of efficiency in the contribution game amongst siblings extends to a...

This paper studies oligopolistic competition in education markets when schools can be private and public and when the quality of education depends on “peer group” effects. In the first stage of our game schools set their quality and in the second stage they fix their tuition fees. We examine...

This paper shows that the combination of habit formation - present consumption creating additional consumption needs in the future - and myopia may explain why some retirees are forced to ‘unretire’, i.e., unexpectedly return to work. It also shows that when myopia about habit formation...

This paper provides a unified treatment of externalities associated with fertility and human capital accumulation as they relate to pension systems. It considers as overlapping generations model in which every generation consists of high earners and low earners with the proportion of types being...