3.3 Directory Structure

When you install GTAPinGAMS, the root directory is empty, and all files reside in one of following six second-level subdirectories:

• BUILD

  Contains GAMS programs for dataset extraction, aggregation, rebalancing and translation. Contains batch files BUILD.BAT, GTAPAGGR.BAT, IMPOSE.BAT, CHKDATA.BAT and ZIP2HAR.BAT.

• DEFINES

  Contains set definition files, mapping files and tax rate assignment files for alternative aggregations of the data. There are three types of files in this subdirectory:

  • Files with extension .SET contain GAMS code defining the sets of commodities, regions and primary factors for a GTAPinGAMS model.
  • Files with extension .MAP define an aggregation in terms of the source dataset and mappings from sets in the source to sets in the target.
  • Files with extension .DEF contain definitions for a dataset which has been constructed by imposing a new set of tax rates or benchmark accounts on another dataset.
• MODELS

  Contains template GAMS programs illustrating how the GTAP data can be GAMS programs. These include four model files:

  • MRTMGE.GMS The static multiregional model specified as an mixed complementarity model using an MPSGE representation of demand and supply functions.
  • MRTMCP.GMS The static multiregional model specified as an mixed complementarity model with GAMS algebra.
  • MRTCNS.GMS The static multiregional model specified as an constrained nonlinear system with the GAMS CNS model type.
  • MRTNLP.GMS The static multiregional model specified as an square nonlinear system within a GAMS nonlinear program.

  A subdirectory under models STANDALONE contains a model which may be processed only after the INCLIB routines have been copied into the GAMS system INCLIB subdirectory.

• INCLIB

  Contains batinclude routines accessed by GAMS programs in subdirectories BUILD and MODELS. A few of these routines are distributed from my web page at the University of Colorado (http://robles.colorado.edu). I have provided these routines in a separate subdirectory in order to assure that the GTAPinGAMS package is completely self-contained and to avoid potential conflicts with user's personal collection of libinclude programs.

• DATA

  Contains constructed data files. Files with the *.ZIP extension are GAMSinGTAP datasets for alternative aggregations. Files with a *.HAR extension are GTAP datasets in the original format readable in GEMPACK. If you have the GTAP distribution file, all files in the DATA subdirectory may be regenerated.

• GTAPDATA

  Contains original files from the GTAP distribution archive GSDSMALL.ZIP. GAMSinGTAP uses only the GTAP data file GSDDAT.HAR from this directory.