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GTAP-E Model and the ‘new’ CO2 Emissions Data in the GTAP/EPA Integrated Data Base – Some Comparative Results

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  • Truong, Truong P.
  • Lee, Huey-Lin

Abstract

Growing research demands for integrated assessment of GHGs issues have motivated the construction of a data base of land use and GHG emissions for use with CGE models. The EPA sponsored GTAP project (hereafter, GTAP/EPA project) aims to develop such a data base. In this paper, we utilize the availability of the CO2 emission data in this ‘new’ integrated data base to carry out some illustrative experiments using the GTAP-E model. We first report on the differences between the ‘new’ CO2 emission ‘coefficients’ as implied in the ‘new’ data base and the previously employed aggregate coefficients used in GTAP-E experiments (Burniaux and Truong, 2002). Overall, the new (implied) coefficients are slightly higher than the previously employed aggregate coefficients. However, there are some cases where the reverse is true. We then use the GTAP-E model to run some experiments with the new data base; first, without any modification to the GTAP-E model structure, and then, with some modifications, to take into account the fact that the new data base contains a richer set of information regarding CO2 emissions at a more disaggregate level, and also because of the fact that the new level of CO2 emissions are generally higher than the old levels. The results of these experiments show that the new data base can give significantly different results, and more research are needed to throw light on the issues concerning the implications of these differences in emission levels across different data bases.

Suggested Citation

  • Truong, Truong P. & Lee, Huey-Lin, 2003. "GTAP-E Model and the ‘new’ CO2 Emissions Data in the GTAP/EPA Integrated Data Base – Some Comparative Results," Conference papers 331144, Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project.
    • Handle: RePEc:ags:pugtwp:331144
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