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American Economic Review Vol. 113 No. 11 2023

Measuring Upward Mobility

Debraj Ray1; Garance Genicot2

1 New York University, Department of Economics (email: ) · 2 Georgetown University, Department of Economics (email: )

Abstract

We conceptualize and measure upward mobility over income or wealth. At the core of our exercise is the Growth Progressivity Axiom: transfers of instantaneous growth rates from relatively rich to poor individuals increases upward mobility. This axiom, along with mild auxiliary restrictions, identifies an “upward mobility kernel” with a single free parameter, in which mobility is linear in individual growth rates, with geometrically declining weights on baseline incomes. We extend this kernel to trajectories over intervals. The analysis delivers an upward mobility index that does not rely on panel data. That significantly expands our analytical scope to data-poor settings.

DOI
10.1257/aer.20220316
Volume
113
Issue
11
Pages
3044-3089
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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