Income Inequality in some Western Countries: Patterns and Trends

Abstract

This article is concerned with pre‐tax total income distribution in 18 “western” countries. Its objective is a tentative comparison among national income distributions and the study of trends since the 1950s. Similar issues have recently been analysed in a number of studies. This analysis differs from them in three main respects. Firstly, it refers to a group of nations which excludes developing countries. In spite of substantial differences in political and socio‐economic structures in this group of countries, processes of income distribution have a great degree of similarity. Income statistics are then more “homogeneous” and their comparison more meaningful than in studies covering developed and developing nations. Secondly, the article differs in the methodology it uses. Other studies have relied on “strict comparisons” of income statistics, for example they have compared values of coefficients of inequality and of income shares. In this article “loose classification”, for example categorisation of countries into groups (see following section), is used as a means of comparing income distributions. This makes it possible to allow, within limits, for the fact that the value of the data can be different from the one which is observed, even when statistics seem “fairly” accurate and comparable. Thirdly, the possible influence of the data source on each country's position is examined by considering a plurality of sources whenever possible. Intentionally, this article does not include discussion of most of the problems which exist in the field of income distribution—including those concerning coverage and reliability of data. It is expected that the reader keeps them and their various caveats well in mind when evaluating the empirical evidence which is presented. The explanation of differences in income distribution structures is outside the scope of this article.

Citation

Roberti, P. (1978), "Income Inequality in some Western Countries: Patterns and Trends", International Journal of Social Economics, Vol. 5 No. 1, pp. 22-41. https://doi.org/10.1108/eb013818