Nous proposons une théorie de la politique (deux partis, une seule question) dans laquelle les citoyens deviennent membre d'un parti en le financant et dans laquelle l'influence d'un de ses membres sur la politique proposée par le parti est proportionnelle à sa contribution. L'électorat est...

Pour la première fois depuis de nombreuses années, un gouvernement conservateur a accédé au pouvoir au Danemark en 2001, en partie à cause de l'insatisfaction des électeurs quant aux politiques d'immigration menées par les socio-démocrates. On décrit la compétition électorale au...

Nous nous proposons d'étudier l'impact que le sentiment anti-immigrés de certains électeurs est susceptible d'avoir sur les propositions que font les partis en matière de politique économique. Nous modélisons la compétition électorale comme ayant lieu entre trois partis (la Gauche, la...

We defend a methodology of discounting, for the evaluation of the long-term effects of climate policies, which relies on a social welfare objective, against the view that the market rate of return should be used for that purpose. We also show that in the long run, the discount rate for such...

In The Myth of Ownership - Taxes and Justice, Liam Murphy and Thomas Nagel (2002) launch an attack against a straw man, the economist who believes that taxation should minimally interfere with property rights and should seek to preserve the market distribution of wealth and income. Instead they...

A premature death unexpectedly brings a life and a career to their end, leading to substantial welfare losses. We study the retirement decision in an economy with risky lifetime, and compare the laissez-faire with egalitarian social optima. We consider two social objectives: (1) the maximin on...

Common sense supports prevention policies aimed at improving survival prospects among the population. It is also widely acknowledged that an early death is a serious disadvantage, and that attention should be paid to the compensation of short-lived individuals. This paper re-examines the...

An early death is, undoubtedly, a serious disadvantage. However, the compensation of short-lived individuals has remained so far largely unexplored, probably because it appears infeasible. Indeed, short-lived agents can hardly be identified ex ante, and cannot be compensated ex post. We argue...

This paper proposes four concepts of exploitation that encapsulate common uses of the word in social interactions: unfair advantage, unequal exchange, using persons as means, free-riding. It briefly discusses how these concepts appear in the literature (the first two are prominent in Roemer's...

This a chapter for the Handbook of Social Choice and Welfare. It deals with the theory of fairness applied to situations when individuals are partly responsible for their characteristics.