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Deriving a Global Social Accounting Matrix from GTAP Versions 5 and 6 Data

Scott McDonald () and Karen Thierfelder

GTAP Technical Papers from Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University

Abstract: This paper reports a method for converting versions 5 and 6 of the GTAP Data Base into a global SAM that is stored in both the GAMS data exchange (GDX) and Header Array (HAR) formats. The focus of attention is on the generation of a SAM representation of the GTAP Data Base that is fully consistent with the GTAP Model; as such the resultant SAM can be readily used to calibrate a version of the GTAP Model that had been coded in GAMS. The GAMS code used to generate the SAM representation of the GTAP Data Base is provided as a GAMS model library – this code has been tested with versions 5.3, 5.4 and 6.0 (pre release 5) of the GTAP Data Base.

Date: 2004
Note: GTAP Technical Paper No. 22
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