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An Introduction to Systematic Sensitivity Analysis via Gaussian Quadrature

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  • Arndt, Channing

Abstract

1996, July Economists recognize that results from simulation models are dependent, sometimes highly dependent, on values employed for critical exogenous variables. To account for this, analysts sometimes conduct sensitivity analysis with respect to key exogenous variables. This paper presents a practical approach for conducting systematic sensitivity analysis, called Gaussian quadrature. The approach views key exogenous variables as random variables with associated distributions. It produces estimates of means and standard deviations of model results while requiring a limited number of solves of the model. Under mild conditions, all of which hold with respect to the GTAP Model, there is strong reason to believe that the estimates of means and standard deviations will be quite accurate.

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File URL: http://www.gtap.agecon.purdue.edu/resources/res_display.asp?RecordID=305
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Bibliographic Info

Paper provided by Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University in its series GTAP Technical Papers with number 305.

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Date of creation: 1996
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Handle: RePEc:gta:techpp:305

Note: GTAP Technical Paper No. 02
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