Inequality and Welfare in Quality of Life Among OECD Countries: Non-parametric Treatment of Ordinal Data
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The last few years have witnessed an increasing emphasis on going beyond GDP per capita when measuring a nation’s quality of life. Countries (e.g. UK, France, Canada, Germany, Italy, Japan, Korea, Spain) and international organizations (e.g. OECD) have been developing methods suitable for non-income indicators. However, this involves serious measurement challenges due to: (a) multidimensionality, and (b) ordinality (i.e. unlike income these indicators do not have a natural scale). This paper is the first summary of the methods developed in the last decade in the field of inequality and welfare measurement to address these challenges. Next, we utilize the presented methodology and provide evidence on the ranking of OECD countries in terms of welfare and inequality in education and happiness. We find that when dimensions are analysed separately, welfare dominance is frequent (42% of all comparisons in education and 31% in life satisfaction). The number drops to only 4.4% for bivariate dominance, which highlights the empirical relevance of multidimensional analysis. Greece, Portugal and Hungary feature the lowest joint welfare. Northern European countries are most often dominating and Southern European countries are most often dominated in both inequality and welfare analyses.
KeywordsOrdinal data Quality of life Inequality and welfare Partial order Majorization Education-happiness gradient
JEL ClassificationI31 D63
The study was funded by Narodowe Centrum Nauki (Grant No. 2016/23/G/HS4/04350) and Ministerstwo Nauki i Szkolnictwa Wyższego (Grant No. MNiD).
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