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The Inequality-Growth Plateau
by Daniel J. Henderson, Junhui Qian, Le Wang
(January 2015)
published in: Economics Letters, 2015, 128, 17-20

Abstract:
We examine the (potentially nonlinear) relationship between inequality and growth using a method which does not require an a priori assumption on the underlying functional form. This approach reveals a plateau completely missed by commonly used (nonlinear) parametric approaches - the economy first expands rapidly with a large decline in inequality, plateaus when inequality remains relatively stable, and then decreases rapidly with a large increase in inequality. This novel finding helps reconcile the conflicting results in the literature (using different parametric assumptions and datasets) and has important policy implications.
Text: See Discussion Paper No. 8771