Trade Liberalization and Pollution: An Input–Output Study of Carbon Dioxide Emissions in Mexico

This paper examines the environmental effects associated with Mexico's participation in the North American Free Trade Agreement (NAFTA). The objective is to provide quantitative estimates of carbon dioxide (CO₂) emissions from changes in the level and structure of production and consumption activity in Mexico following a liberalization of trade. The quantitative analysis was performed using input–output methods with fuel use modifications to account for CO₂ emissions before and after NAFTA's implementation. As a result of NAFTA, CO₂ emissions are expected to increase from the anticipated increase in the size of the Mexican economy. While total emissions increase as a result of tariff elimination, there is also a shift in the structure of production and final consumption away from those sectors that are the most C02 intensive.