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GTAP Resource #2850

"Exercises in Contributing I-O Tables to the GTAP Data Base"
by Horridge, Mark, Robert McDougall, Badri Narayanan and Terrie Walmsley

In contributing data to the GTAP Data Base, contributors often find that the data they obtain from their statistical agencies (SAMs, supply and use tables or I-O tables ) do not match the I-O table type format required by the Center for Global Trade Analysis, as set out in Technical paper #1 by Huff, McDougall and Walmsley (2000) and must therefore be re-organised. The purpose of this document is to provide a number of hands-on exercises to assist contributors with manipulating and contributing regional data to the GTAP Data Base.
These exercises start from a fairly typical raw data format and use a set of programs to manipulate the data to eventually obtain the GTAP format. Since it is not possible to cover every conceivable issue that a contributor might face in reformatting their country data, the exercises work through a number of typical issues faced by many contributors. The document primarily makes use of GEMPACK and MS-DOS batch files to process the data. Once you become familiar with the GEMPACK programs you may develop your own programs to manipulate the data for other issues that may arise with your data.
The document is divided into four parts. Part A introduces the reader to some preliminary information about the programs used in this document. Part A is particularly important for those who have never used GEMPACK or MS-DOS batch files. Part B contains several exercises which build on each other to develop a series of TAB files, linked through a batch file. Each exercise deals with a typical problem a contributor might face when processing his/her data. It starts with EXCEL, then introduces GEMPACK and finally links all the exercises through a batch file. Part C then runs a number of check programs to ensure the data is acceptable and provides examples of how to read the reports produced by the Center. Finally Part D contains some more advanced examples of issues a contributor might face.

Resource Details (Export Citation) GTAP Keywords
Category: GTAP Application
Status: Not published
Date: 2008
Version: Version 4
Created: Walmsley, T. (9/11/2008)
Updated: Batta, G. (9/11/2008)
Visits: 11,043
- Software and modeling tools
- The GTAP Data Base and extensions

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