TY - JOUR AU - Chichilnisky,Graciela AU - Heal,Geoffrey TI - Who Should Abate Carbon Emissions? An International Viewpoint JF - National Bureau of Economic Research Working Paper Series VL - No. 4425 PY - 1993 Y2 - August 1993 UR - http://www.nber.org/papers/w4425 L1 - http://www.nber.org/papers/w4425.pdf N1 - Author contact info: Graciela Chichilnisky 335 riverside drive ny ny 10025 E-Mail: gc9@columbia.edu Geoffrey Heal Graduate School of Business 616 Uris Hall Columbia University New York, NY 10027-6902 Tel: 212/854-6459 Fax: 212/316-9219 E-Mail: gmh1@columbia.edu AB - We review the optimal pattern of carbon emission abatements across countries in a simple multi-country world. We model explicitly the fact that the atmosphere is a public good. Within this framework we establish conditions for it to be necessary for optimality that the marginal cost of abatement be the same in all countries. These condition are quite restrictive, and amount to either ignoring distributional issues between countries or operating within a framework within which lump-sum transfers can be made between countries. These results have implications for the use of tradeable emission permits, which as normally advocated will lead to the equalization of marginal abatement costs across countries. The observation that the atmosphere is a public good implies that we may need to look at a Lindahl equilibrium rather than a Walrasian equilibrium in tradeable permits. ER -