Relaxing the import proportionality assumption in multi-regional input-output modelling.

ABSTRACT: In the absence of data on the destination industry of international trade flows most multi-regional input-output (MRIO) tables are based on the import proportionality assumption. Under this assumption imported commodities are proportionally distributed over the target sectors (individual industries and final demand categories) of an importing region. Here, we quantify the uncertainty arising from the import proportionality assumption on the four major environmental footprints of the different regions and industries represented in the MRIO database EXIOBASE. We randomise the global import flows by applying an algorithm that randomly assigns imported commodities block-wise to the target sectors of an importing region, while maintaining the trade balance. We find the variability of the nation

SUBMITTER: Schulte S 

PROVIDER: S-EPMC8549924 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature