Inequality based on Lorenz dominance criteria. An application to Mayotte using nightlights

Frédéric Chantreuil (), Idriss Fontaine () and François Hermet ()
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Frédéric Chantreuil: Université de La Réunion, CEMOI
Idriss Fontaine: Université de La Réunion, CEMOI
François Hermet: Université de La Réunion, CEMOI

Economics Bulletin, 2025, vol. 45, issue 1, 446 - 457

Abstract: Using high-resolution spatial datasets for nightlights and population, we propose an alternative measure of income for the French overseas department of Mayotte in 2013 and 2019. From these two distributions, we examine changes in inequality between these periods by deriving both relative and absolute Lorenz curves. Standard criteria based on first- or second-degree relative Lorenz dominance are inconclusive, as the associated Lorenz curves intersect in both cases. By turning to the analysis of absolute Lorenz curves, we can discriminate between the two distributions, but only at the second-degree of Lorenz dominance. This finding suggests that, under the implied conception of distributive justice, Mayotte exhibited greater inequality in 2019 than in 2013.

Keywords: Nightlights; Inequality; Lorenz dominance criteria; Mayotte (search for similar items in EconPapers)
JEL-codes: D3 D6 (search for similar items in EconPapers)
Date: 2025-03-30
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