Economic growth and the optimal inequality of income

• Authors: Jan Jacek Sztaudynger
• Languages of publication: EN

Abstracts

EN

Inequality of income is one of the significant factors forming social capital. Two views dominate among economists dealing with the influence of income inequality on economic growth. On the one hand, a too low level of income inequality does not motivate people to increase their labour productivity. Low inequality of income might result from an extended social care system and a GDP burdened with social transfers. A good example may be a situation when an unemployed person refuses to accept a job offer and prefers unemployment benefits to a slightly higher salary. Moreover, a lack of incentives for an employee who fails to acknowledge the economic sense of increasing the productivity of his or her work might lead to a slower growth of the economy. On the other hand, a contrary view suggests that an increase in inequality of income has a negative impact on the economy. The accumulation of wealth by a small number of citizens raises doubts about the good use of that wealth for the investments necessary for the growth of the economy. Excessive inequality of income is confronted with the disapproval of a significant part of society and is regarded as unfair and unjustified. It may also increase the crime rate, decrease trust and, more generally, lead to the weakening of social capital. The arguments presented above lead to the hypothesis that the influence of income inequality on the growth of the economy has a non-linear, parabolic character. We have confirmed this hypothesis in growth models of the US and Swedish economies. We assess the historically optimal inequality of income measured by the Gini coefficient at 46% and 24% for the US and Sweden, respectively. The optimal inequality of income for Poland was assessed previously at 29%. The dissimilarities may result from differences in culture, society, educational level and diligence.

Keywords

EN

income inequality; economic growth; optimal inequality

• Publisher: Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
• Journal: Annales. Etyka w Życiu Gospodarczym
• Year: 2018
• Volume: 21
• Issue: 8
• Pages: 89-99

Dates

published

2019-05-14

Contributors

author

Jan Jacek Sztaudynger

• University of Lodz, Faculty of Economics and Sociology, Department of Econometrics

References

• Barro, R. J. (2000). Inequality and growth in a panel of countries. Journal of Economic Growth, 5(1), 5–32.
• Cornia, G. A., & Court, J. (2001). Inequality, growth and poverty in the era of liberalization and globalization. Helsinki: The United Nations University WIDER. https://www.wider.unu.edu/publication/inequality-growth-and-poverty-era-liberalizationand-globalization
• Dollar, D., & Kraay, A. (2002). Growth is good for poor. Journal of Economic Growth, 7(3), 195–225.
• Ferreira, F. H. G. (1999). Inequality and economic performance. A brief overview to theories of growth and distribution. World Bank Poverty Net. http://siteresources.worldbank.org/INTPGI/Resources/Inequality/ferreira.pdf
• Forbes, K. J. (2000). A Reassessment of the Relationship between Inequality and Growth. American Economic Review, 90(4), 869–897.
• Gracia, E. (2002). Kryzys argentyński w świetle nauki społecznej Kościoła. Społeczeństwo, 2, 189–201.
• Kumor, P. (2006). Nierównomierność rozkładu płac. Wiadomości Statystyczne, 9, 1–12.
• Kumor, P. (2010). Wpływ nierówności dochodów na wzrost gospodarczy (Unpublished doctoral dissertation written under the supervision of J. J. Sztaudynger). University of Łódź.
• Kumor, P., & Sztaudynger, J. J. (2007a). Optymalne zróżnicowanie płac w Polsce – analiza ekonometryczna. Ekonomista, 1, 45–59.
• Kumor, P., & Sztaudynger, J. J. (2007b). Zastosowanie modelu wzrostu gospodarczego do szacowania optymalnej nierówności płac. Gospodarka Narodowa, 214(3), 49–65.
• Li, H., & Zou, H. (1998). Income Inequality is not Harmful for Growth: Theory and Evidence. Review of Development Economics, 2(3), 318–334.
• Morrissey, O., Mbabazi, J., & Milner, C. (2002). Inequality, trade, liberalization and growth. Centre for the Study of Globalization and Regionalization, Working Paper 2002, No. 102/02, University of Warwick.
• Pawlak, W., & Sztaudynger, J. J. (2008). Wzrost gospodarczy a optymalne zróżnicowanie dochodów w USA i Szwecji. Annales. Ethics in Economic Life, 11(1), 259–271.
• Persson, T., & Tabellini, G. (1994). Is inequality harmful for growth? American Economic Review, 84(3), 600–621.
• Sirianni, C., & Friedland, L. (1995, August 20). Social capital and civic innovation: Learning and capacity building from the 1960s to the 1990s. A paper prepared for the American Sociological Association Annual Meeting, Washington D.C.
• Solow, R. M. (1967). Teoria kapitału i stopy przychodu. Warszawa: Państwowe Wydawnictwo Naukowe.
• Sztaudynger, J. J. (2003). Modyfikacje funkcji produkcji i wydajności pracy z zastosowaniami. Łódź: Wydawnictwo Uniwersytetu Łódzkiego.
• Sztaudynger, J. J. (2005). Wzrost gospodarczy a kapitał społeczny, prywatyzacja i inflacja. Warszawa: Wydawnictwo Naukowe PWN.
• Sztompka, P. (2002). Socjologia. Analiza społeczeństwa. Kraków: Wydawnictwo Znak.
• United Nations University, World Institute for Development Economics Research. (2005). World Income Inequality Database V 2.0a.

Identifiers

DOI

10.18778/1899-2226.21.8.08