This paper analyzes the direction of optimal intergenerational transfers in a setting of endogenous growth à la Arrow-Romer. It shows that the case for ascending transfers such as implied by pay-as-you-go social security is rather weak. What is rather needed is a subsidy on interest income....

This paper considers a utilitarian federal government that attempts to effect some revenue sharing or to finance through taxation some national public good. For reason of asymmetric information, this financing cannot be based on actual regional income nor on regional preferences, as it should be...

This paper considers a three-overlapping-generations model of endogeneous growth wherein human capital is the engine of growth. It first contrasts the laissez-faire and the optimality solutions. Then it discusses alternative sets of tax-transfer instruments that allow for decentralization of the...

In this paper we discuss the interest of applying differential co-payment rates across alternative medical treatments. Two treatment strategies are considered: a "long term strategy" in which patients apply preventive measures before knowing if they have the desease and an "emergency strategy"...