The centerpiece of the Global Trade Analysis Project is a global data base describing bilateral trade patterns, production, consumption and intermediate use of commodities and services. The GTAP Data Base consists of bilateral trade, transport, and protection matrices that link individual country/regional economic data bases. The regional data bases are derived from individual country input-output tables, from varying years.
The GTAP Data Base is covered by Thomson Reuters Data Citation Index. Previous versions of the GTAP Data Base, that are at least 2 releases old are freely available for download. GTAP consortium members and ata contributors receive a single use license and free access to the most recent update.