Global Input-Output Systems: A Comparison between ICIO and WIOT

Abstract

This article aims to compare the global input-output interregional systems Intercountry Input-Output Model ICIO from Organization for Economic Co-operation and Development OECD and World Input-Output Table WIOT from World Input-Output Database WIOD, in order to identify the main differences between them, in holistic and partitive terms. Subsequently, it was assessed whether the choice between these systems can influence the results of the input-output analysis. The results showed that the apparently low partitive proximity between the values estimated by ICIO and WIOT did not convert into greater holistic differences, i.e., it did not compromise the results of input-output analysis for the majority of countries. However, when it comes to a specific analysis for some countries, such as Malta, Cyprus, Lithuania and Luxembourg, and/or some industries, mainly services sectors, some notes made in this study need to be considered.