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Physiological aging around the World.

Carl-Johan Dalgaard¹, Casper Worm Hansen¹, Holger Strulik²

¹Department of Economics, University of Copenhagen, København, Denmark.

|June 8, 2022

Summary

Global physiological aging is increasing, with the average person aging one life-year over 30 years. This aging trend negatively impacts economic growth, reducing GDP per capita.

Area of Science:

Gerontology
Economics
Demography

Background:

Physiological aging is typically studied at the individual level.
Global data on physiological aging trends and economic impacts are limited.

Purpose of the Study:

To compute a macro frailty index for global physiological aging trends.
To analyze the relationship between physiological aging and economic growth.

Main Methods:

Utilized panel estimation techniques on data from 201 countries (1990-2019).
Calculated a macro frailty index to measure physiological aging.
Controlled for population age structure to isolate aging effects.

Main Results:

The global frailty index increased by approximately 2% over 30 years.

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Physiological aging of the workforce is negatively correlated with economic growth.

A 1% increase in workforce frailty index corresponds to a 1.5% decrease in GDP per capita.

Conclusions:

Global physiological aging is a significant trend with measurable economic consequences.
Slowing physiological aging could enhance labor productivity and economic growth.
Further research into mitigating the economic impacts of aging populations is warranted.