Índice de ecoeficiência e a regressão Tobit: uma análise entre os anos de 1991 a 2012

Abstract

The objective of this research was to calculate the Eco-Efficiency Index (EI) for 51 countries using the Free Disposal Hull (FDH) method and the estimation of a Tobit Regression in order to determine the explanatory varablethat had the greatest impact on IE. It was found that the value of the average eco-efficiency decreased. In the IE classificatiion, in all years, very low IE was the largest number of countries and the pedominant continent was Ásia. From the explanatory variables used in the regression model, the Gross Formation of Fixed Capital, Consumption of Fossil Fuels and Coal Rents showed that they have a negative effect on the eco-efficiency score, while the Adult Literacy Rate and Government Quality variables generate a positive effects. These results show that some countries have assumed responsibility for environmental issues, but they are insuffcient to transform the current reality, showing that it is necessary to increase the knowledge about the subjec to propose better global and local alternatives, in the search to reach sustainability is so necessary and urgent for future generations.