Robbie Andrew

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A Multi-Region Input-Output Table Based on the Global Trade Analysis Project Database (GTAP-MRIO)


Understanding the drivers of many environmental problems requires enumerating the global supply chain. Multi-Regional Input-Output Analysis (MRIOA) is a well-established technique for this purpose, but constructing an MRIO Table (MRIOT) can be a formidable challenge. We constructed a large MRIOT using the Global Trade Analysis Project (GTAP) database of harmonized economic, IO, and trade data. We discuss the historical development of the GTAP-MRIO and describe its efficient construction. We provide updated carbon footprint estimates and analyse several issues relevant for MRIO construction and applications. We demonstrate that differences in environmental satellite accounts may be more important than differences in MRIOTs when calculating national carbon footprints. The GTAP-MRIO is a robust global MRIOT and, given its easy availability and implementation, it should allow the widespread application of global MRIOA by a variety of users.

A synthesis of carbon in international trade

In this comprehensive and up-to-date overview of the analysis of carbon embodied in international trade, Glen Peters and colleagues bring together treatments of some of the key issues, and introduce important new analyses. Learn more »

How to build an MRIOT from GTAP

Glen Peters and colleagues lay out clearly the method for constructing a multi-regional input-output table using the GTAP (Global Trade Analysis Project) database. Learn more »

Approximating MRIO

Because of the cost and perceived difficulty of using full multi-regional input–output (MRIO) models to calculate emissions embodied in international trade, many researchers use simpler approaches, making key assumptions and approximations. In this study, Robbie Andrew and colleagues investigate the effects of these approximations and provide advice on their use. Learn more »

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