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Measurement of Lifespan in Drosophila melanogaster
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Economic inequality, intergenerational mobility, and life expectancy.

Ning Xiong1, Yehua Dennis Wei2

  • 1School of Environment, Society and Sustainability, University of Utah, 260 S Central Campus Dr, Rm 4625, Salt Lake City, UT, 84112, USA.

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Summary
This summary is machine-generated.

Economic inequality negatively impacts life expectancy by reducing intergenerational mobility (IM), particularly absolute mobility for males and lower-income groups. Targeted interventions can mitigate these public health disparities.

Keywords:
Economic inequalityIntergenerational mobilityLife expectancyMediating effectsMultilevel structural equation modeling

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Area of Science:

  • Public Health
  • Sociology
  • Economics

Background:

  • Economic inequality is a growing concern impacting population health.
  • Intergenerational mobility (IM) may mediate the link between inequality and health outcomes.
  • Life expectancy is a key indicator of population health disparities.

Purpose of the Study:

  • To investigate the mediating role of IM in the relationship between economic inequality and life expectancy in the US.
  • To examine how absolute and relative mobility influence this relationship across genders and socioeconomic groups.
  • To analyze the impact of geographic levels (state, commuting zone) on these associations.

Main Methods:

  • Multilevel structural equation modeling was employed.
  • Data analyzed at both state and commuting zone (CZ) levels.
  • Analyses conducted for both male and female populations, considering various covariates.

Main Results:

  • Economic inequality adversely affects life expectancy primarily through reduced absolute mobility, especially for males and lower-income individuals.
  • Relative mobility also impacts life expectancy, particularly for males in lower-income groups at the CZ level.
  • The significance of some mobility effects diminished when including covariates like social capital and Black population share, though male absolute mobility effects remained robust.

Conclusions:

  • Economic inequality influences life expectancy through intergenerational mobility pathways.
  • Absolute mobility is a key mediator, with significant impacts on males and lower-income populations.
  • Findings suggest the need for targeted public health interventions to address socioeconomic disparities and improve population health.