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GTAP Resources: Resource Display

GTAP Resource #2671

"Meta Response Surface Design for General and Partial Equilibrium Models"
by Hess, Sebastian and Stephan von Cramon-Taubadel


Abstract
A Meta-Analysis of potential Doha Development Agenda outcomes has identified characteristics of models, data and policy experiments that influence simulated welfare changes across a wide range of modelling frameworks. This analysis by Hess and von Cramon-Taubadel (2008) was based on 5800 observations from 110 studies. Meta-regressions produce plausible results and explain a significant proportion of the variation within the dependent variable. However, due to the complexity of the general and partial equilibrium models within the literature sample, explanatory variables in this analysis are mostly binary and do not allow for detailed assessments of the role of individual parameters across different models. Therefore, the partial equilibrium model “GSIM” and a single country CGE for Canada are employed in order to generate meta-data out of synthetic scenarios. These scenarios are based on randomly specified combinations of base data, elasticities and tariff changes that a software routine has selected from previously specified, plausible ranges that were obtained from the literature sample of Doha assessments. The meta-regression based on these synthetic meta-data thus combines two different trade models into one econometric response surface meta-model. Further development of this approach may potentially enable simultaneous sensitivity assessments of scenarios from both models as well as predictions of model outcomes from alternative base data and parameter specifications.


Resource Details (Export Citation) GTAP Keywords
Category: 2008 Conference Paper
Status: Published
By/In: Canadian Agricultural Trade Policy Research Network (CATPRN); Presented at the 11th Annual Conference on Global Economic Analysis, Helsinki, Finland
Date: 2008
Version:
Created: Hess, S. (4/14/2008)
Updated: Hess, S. (4/14/2008)
Visits: 1,722
- Preferential trading arrangements
- Agricultural policies
- Calibration and parameter estimation
- Baseline development


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