Title: Non-Compensatory/Non-Linear Composite Indicators for Ranking Countries: A Defensible Setting
Citation: APPLIED ECONOMICS vol. 41 p. 1513-1523
Publication Year: 2009
JRC N°: JRC34883
ISSN: 0003-6846
URI: http://dx.doi.org/10.1080/00036840601019364
DOI: 10.1080/00036840601019364
Type: Articles in periodicals and books
Abstract: Composite indicators (or indexes) are very common in economic and business statistics for benchmarking the mutual and relative progress of countries in a variety of policy domains such as industrial competitiveness, sustainable development, globalisation and innovation. The proliferation of the production of composite indicators by all the major international organizations is a clear symptom of their political importance and operational relevance in policy-making. As a consequence, improvements in the way these indicators are constructed and used seem to be a very important research issue from both the theoretical and operational points of view. This paper aims at contributing to the improvement of the overall quality of composite indicators (or indexes) by looking at one of their technical weaknesses, that is, the aggregation convention used for their construction. For this aim, we build upon concepts coming from multi-criteria decision analysis, measurement theory and social choice. We start from the analysis of the axiomatic system underlying the mathematical modelling commonly used to construct composite indicators. Then a different methodological framework, based on non-compensatory/non-linear aggregation rules, is developed. Main features of the proposed approach are: (i) the axiomatic system is made completely explicit, and (ii) the sources of technical uncertainty and imprecise assessment are reduced to the minimum possible degree.
JRC Directorate:Space, Security and Migration

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