Multimedia

Geneva Trade and Development Workshop "The Economic Geography of Global Warming"

On Monday 4 October, Esteban Rossi-Hansberg will present his paper "The Economic Geography of Global Warming", joint with José-Luis Cruz. https://rossihansberg.economics.uchicago.edu/EGGW.pdf

Abstract: Global warming is a worldwide and protracted phenomenon with heterogeneous local economic effects. In order to evaluate the aggregate and local economic consequences of higher temperatures, we propose a dynamic economic assessment model of the world economy with high spatial resolution. Our model features a number of mechanisms through which individuals can adapt to global warming, including costly trade and migration, and local technological innovations and natality rates. We quantify the model at a 1◦ × 1◦ resolution and estimate damage functions that determine the impact of temperature changes on a region’s fundamental productivity and amenities depending on local temperatures. Our baseline results show welfare losses as large as 19% in parts of Africa and Latin America but also high heterogeneity across locations, with northern regions in Siberia, Canada, and Alaska experiencing gains. Our results indicate large uncertainty about average welfare effects and point to migration and, to a lesser extent, innovation as important adaptation mechanisms. We use the model to assess the impact of carbon taxes, abatement technologies, and clean energy subsidies. Carbon taxes delay consumption of fossil fuels and help flatten the temperature curve but are much more effective when an abatement technology is forthcoming.

The GTDW is an established regular trade and development seminar series organized jointly by the Geneva School of Economics and Management of the University of Geneva (GSEM), the Graduate Institute in Geneva (IHEID), the United Nations Conference on Trade and Development (UNCTAD) and the World Trade Organization (WTO). After twelve years of running as an on-site seminar, the online edition of GTDW is co-organized with the Centre for Economic Policy Research (CEPR). Visit GTDW's website for further information: www.gtdw.ch.