WP1: Multiregional Input-Output Database: OPEN:EU Technical Document
Multiregional input-output analysis (MRIO) is increasingly used to analyse the environmental
implications of consumption, be it for greenhouse gas emissions, land use, and water use.
Input-output tables display the interconnection between different sectors of production and allow for a tracing of the production and consumption in an economy. Traditionally, inputoutput
tables are constructed for national economies; however, production is increasingly global.
In this report we discuss the theory behind MRIO models for applications in footprint
calculations (Section 2) and discuss common modeling assumptions (Section 3). MRIO models
require a considerable amount of data and we discuss many of the practical data issues that
are encountered in MRIO modeling (Section 4). In Section 5 we briefly review important
applications of MRIO in environmental policy making. In Section 6 we finally discuss the
potential for increased use of MRIO models to indicate the type of policy questions the
OPEN:EU model could be used to answer (section 6).