No. 1: Inequality and how incomes are generated

What is holding back the implementation of the 2030 Agenda? Insights from the CDP
by Rolph van der Hoeven

Experience has shown that it is not possible to empower people and to reduce household income inequality without addressing how incomes are generated in the production process and how this affects the so-called factor income inequality (the distribution of national income between rents from land, capital income and labour income).

Household income inequality can be interpreted in three ways (van der Hoeven, 2019):

  1. Primary income inequality: the distribution of household incomes consisting of the (sometimes cumulated) different factor incomes in each household, before taxes and subsidies as determined by markets and market institutions;
  2. Secondary income inequality: the distribution of household incomes after deduction of taxes and inclusion of transfer payments (i.e. as determined by fiscal policies);
  3. Tertiary income inequality: the distribution of household incomes when imputed benefits from public expenditure are added to household income after taxes and subsidies. This interpretation of household income is particularly relevant for developing countries as different services and government services are often provided for free or below market prices.

Most policy discussions on income inequality focus, however, on secondary household income inequality (take-home pay, rents, interest earnings and profits after taxes) and on tertiary income inequality (an analysis of the Voluntary National Reviews of the SDGs shows that programmes on empowerment are mostly financed from public sources).

The focus on factor income inequality points to the importance of better understanding the changing position of labour in the production process in order to correctly interpret inequality trends, as labour has been losing ground relative to capital over the past 20 years. Furthermore, experience has shown that it is not possible to reduce primary household income inequality without addressing how incomes are generated in the production process and how this affects factor income inequality (van der Hoeven 2019).

Atkinson (2009) argues convincingly that there are at least three reasons to pay again greater attention to factor income distribution:

  1. To clarify the link between incomes at the macroeconomic level (national accounts) and incomes at the level of the household;
  2. To help understand inequality in the personal distribution of income;
  3. To address the social justice concerns with the fairness of different returns to different sources of income.

Factor income inequality matters to people for at least two reasons. Firstly wealth, and especially high yielding wealth, is still extremely unevenly distributed. Therefore the current trend of an increasing share of capital in national income has a significant effect in raising household income inequality. Secondly, the fact that profits may be rising much faster than wages, conflicts with widely held views of social justice and fairness.

References:

  • Atkinson, A. B. (2009) ‘Factor shares: the principal problem of political economy?’ Oxford Review of Economic Policy, vol. 25, n. 1, 3–16.
  • van der Hoeven, R. (2019) ‘Income Inequality in Developing Countries, past and present’, Chapter 10 in Nissanke, M, Ocampo, J. A. (Eds.) The Palgrave Handbook of Development Economics, Critical
  • Reflections on Globalisation and Development, Basingstoke UK, Palgrave-McMillan

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