Social inequality in the world: trends during 2000—2016

The study of economic growth and social inequality goes back to the works of S. Kuznets, A. Atkinson, P. Krugman, J. Stiglitz, T. Piketti and B. Milanovic. Statistical analysis of social inequalities for a large set of countries, divided into seven clusters, was conducted for the period 2000—2016. The share of incomes of the tenth decile was used as a measure of inequality. A high degree of stability of the level of inequality was found in most groups, especially in the most developed countries, and in particular in the Anglo-Saxon ones. The distribution of key socio-economic and even political indicators for clusters shows their high relation with the structure of cluster inequality. This makes it possible to significantly deepen the analysis of the stages of world development.