Article (Scientific journals)
Missing Poor in the U.S.
Lefebvre, Mathieu; Pestieau, Pierre; Ponthiere, Grégory
2024 • In Journal of Economic Inequality, 22 (4), p. 865 - 891
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Keywords :
Comparability; Income gradient in mortality; Measurement; Poverty; Selection biases; Sociology and Political Science; Economics, Econometrics and Finance (all); Organizational Behavior and Human Resource Management
Abstract :
[en] Given that poor individuals face worse survival conditions than non-poor individuals, one can expect that a steeper income gradient in mortality leads, through stronger income-based selection, to a lower poverty rate at the old age (i.e. the "missing poor" hypothesis). This paper uses U.S. state-level data on poverty at age 65+ and life expectancy by income levels to provide an empirical test of the missing poor hypothesis. Using average temperature as an instrument for mortality differentials, we show that instrumented changes in mortality differentials have a negative and statistically significant effect on old-age poverty: a 1 % increase in the mortality differential implies a 16 % decrease in the 65+ headcount poverty rate. Using those regression results, we compute hypothetical old-age poverty rates while neutralizing the impact of the income gradient in mortality, and show that correcting for heterogeneity in income-based selection effects modifies the comparison of old-age poverty prevalence across states.
Disciplines :
Economic systems & public economics
Author, co-author :
Lefebvre, Mathieu  ;  Université de Liège - ULiège > Ecole de Gestion de l'Université de Liège ; Aix Marseille University, CNRS, AMSE, Marseille, France
Pestieau, Pierre  ;  Université de Liège - ULiège > Ecole de Gestion de l'Université de Liège
Ponthiere, Grégory ;  Université de Liège - ULiège > HEC Liège : UER > UER Economie ; UCLouvain, Hoover Chair in Economic and Social Ethics, Collège Dupriez, Louvain-La-Neuve, Belgium
Language :
English
Title :
Missing Poor in the U.S.
Publication date :
December 2024
Journal title :
Journal of Economic Inequality
ISSN :
1569-1721
eISSN :
1573-8701
Publisher :
Springer
Volume :
22
Issue :
4
Pages :
865 - 891
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ANR - Agence Nationale de la Recherche
AMU - Aix-Marseille University
Funding text :
The authors would like to thank two anonymous referees for their insightful suggestions. They thank also participants of seminars at the University of Freiburg and Aix-Marseille School of Economics as well as participants at the 19th Journ\u00E9es Louis-Andr\u00E9 Gerard-Varet, the 8th meeting of the Society for the Study of Economic Inequality and the 20th International Conference on Public Economic Theory. This work was supported by the French National Research Agency Grant ANR-17-EURE-0020, and by the Excellence Initiative of Aix-Marseille University - A*MIDEX.
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