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Kuznets Curve for the US: A Reconsideration Using Cosummability

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Abstract

The relationship between income inequality and long-run economic growth has gained a growing attention in economic research for over decades. This study employed advanced time series techniques to examine the existence of an inverted U-shaped long-run relationship between income inequality and economic growth, using long-span time series data for the United States between the periods 1917–2012. The concepts of summability, balancedness and co-summability was advanced to analyze nonlinear long-run relations among stochastic processes. The empirical results find no evidence in support of nonlinear long-run (inverted U-shaped) relationship for the US, but findings from a vocal set of economists lends strong support and is the basis for the conclusions drawn by this study.

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Notes

  1. For interested reader see the work of Kuznets (1955) and Anand and Kanbur (1993).

  2. In this study we use income per capita and economic growth synonymously.

  3. There are many reasons why income inequality would negatively or positively influence economic growth. For more details see Weil (2005) and Toshiaki (2005).

  4. For an exposition on the estimation of this series and file including percentile threshold see Frank, Sommeiller–Price and Saez. Interested reader for further explanation on estimation of other measures of income share or distribution should see Frank (2009).

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Acknowledgements

We would like to thank two anonymous referees for many helpful comments. However, any remaining errors are solely ours.

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Correspondence to Seyi Saint Akadiri.

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Nasr, A.B., Balcilar, M., Akadiri, S.S. et al. Kuznets Curve for the US: A Reconsideration Using Cosummability. Soc Indic Res 142, 827–843 (2019). https://doi.org/10.1007/s11205-018-1940-1

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  • DOI: https://doi.org/10.1007/s11205-018-1940-1

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