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This paper formulates a static applied general equilibrium model of a small open economy and then calibrates it to the Mexican input–output matrix for 1987. We use the calibrated model to quantify how much of the dramatic rise in the skill premium over the period 1987–1994, following the liberalization of the trade policy in Mexico, can be accounted for by the change in the extensive margin of trade or trade variety. Our numerical experiments show that the increase in the extensive margin of Mexican manufactured trade with the U.S. can account for up to approximately 12 percent of the actual increase in skill premium in Mexico from 1987 to 1994. [ABSTRACT FROM AUTHOR]

This paper aims to verify if there is any effect in the income distribution for the Mexican economy when applying a tax on fossil fuels in order to reduce CO2 emissions. In order to reach this goal a computable general equilibrium model was built following the Shoven and Whalley method. It is observed that the application of a tax achieves a reduction in fossil fuel demand, but it does not have any meaningful consequence on the income redistribution of the society. All the levels of the economy have a loss in welfare as a consequence of the application of this tax. [ABSTRACT FROM AUTHOR]