URL des Documents de travail ; http://ces.univ-paris1.fr/cesdp/CESFramDP2010.htmDocuments de travail du Centre d'Economie de la Sorbonne 2010.42 - ISSN : 1955-611XWe develop a political economy model that might explain the different environmental performance of countries, through educational choices. Individuals decide whether to invest in additional education according to their expectations regarding future environmental quality. They also vote on a tax that will be exclusively used to finance environmental protection. We show that the model may generate multiple equilibria and agents' expectations may be self-fulfilling when the public policy is endogenous. Then, we analyse the long-term implications of a public policy that would favour e...