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Missing Poor in the U.S

Author

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  • Mathieu Lefebvre
  • Pierre Pestieau
  • Gregory Ponthiere

Abstract

Given that poor individuals face worse survival conditions than nonpoorindividuals, one can expect that a steeper income/mortality gradient 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 airpollution as an instrument for mortality di§erentials, 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 9 % decrease in the 65+ headcount poverty rate. Using those regression results, we compute hypothetical old-age poverty rateswhile neutralizing the impact of the income/mortality gradient, and show that correcting for heterogeneity in income-based selection effects modifies the comparison of old-age poverty prevalence across states.

Suggested Citation

  • Mathieu Lefebvre & Pierre Pestieau & Gregory Ponthiere, 2018. "Missing Poor in the U.S," Working Papers of BETA 2018-32, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
  • Handle: RePEc:ulp:sbbeta:2018-32
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    Keywords

    poverty; measurement; income/mortality gradient; selection biases; comparability.;

    JEL classification:

    • I32 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Measurement and Analysis of Poverty

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