We build, calibrate and simulate a stylized energy-economy model designed to evaluate the magnitude of carbon tax that would allow the French economy to reduce by a factor of four its CO2 emissions at a forty-year horizon. We estimate the substitution possibilities between fossil energy and...

Ce papier systimatise l'etude de l'existence d'un sentier de croissance optimale durable dans une economie dont les activites productives sont responsables d'emissions polluantes qui s'accumulent dans la nature et degradent le bien-etre des individus. Nous cherchons donc a identifier les...

The attitude of future generations towards environmental assets could be different from ours, and it is necessary to take into account explicitly this possibility in the current debate about environmental policy. The question we address here is : should uncertainty about future preferences lead...