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Evidence for a ‘Midlife Crisis’ in Great Apes Consistent with the U-Shape in Human Well-Being

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Author Info

  • Weiss, Alexander

    ()
    (University of Edinburgh)

  • King, James E.

    ()
    (University of Arizona)

  • Inoue-Murayama, Miho

    ()
    (Kyoto University)

  • Matsuzawa, Tetsuro

    ()
    (Kyoto University)

  • Oswald, Andrew J.

    ()
    (University of Warwick)

Abstract

Recently, economists and behavioral scientists have studied the pattern of human well-being over the lifespan. In dozens of countries, and for a large range of well-being measures, including happiness and mental health, well-being is high in youth, falls to a nadir in midlife, and rises again in old age. The reasons for this U-shape are still unclear. Present theories emphasize sociological and economic forces. In this study we show that a similar U-shape exists in 508 great apes (two samples of chimpanzees and one sample of orangutans) whose well-being was assessed by keepers familiar with the individual apes. This U-shaped pattern or ‘midlife crisis’ emerges with or without use of parametric methods. Our results imply that human well-being’s curved shape is not uniquely human and that, while it may be partly explained by aspects of human life and society, its origins may lie partly in the biology we share with closely related great apes. These findings have implications across scientific and social-scientific disciplines and potentially in identifying ways to enhance the well-being of humans and apes.

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Bibliographic Info

Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 7009.

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Length: 21 pages
Date of creation: Nov 2012
Date of revision:
Publication status: published in: Proceedings of the National Academy of Sciences, 2012, 109 (49), 19949-19952
Handle: RePEc:iza:izadps:dp7009

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Keywords: aging; primate; satisfaction; evolution; affect;

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References

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  1. Kassenboehmer, Sonja C. & Haisken-DeNew, John P., 2012. "Heresy or enlightenment? The well-being age U-shape effect is flat," Economics Letters, Elsevier, vol. 117(1), pages 235-238.
  2. Clark, Andrew E. & Oswald, Andrew J. & Warr, Peter B., 1994. "Is job satisfaction u-shaped in age ?," CEPREMAP Working Papers (Couverture Orange) 9407, CEPREMAP.
  3. Van Landeghem, Bert, 2012. "A test for the convexity of human well-being over the life cycle: Longitudinal evidence from a 20-year panel," Journal of Economic Behavior & Organization, Elsevier, vol. 81(2), pages 571-582.
  4. Mary C. Daly & Daniel J. Wilson, 2008. "Happiness, unhappiness, and suicide: an empirical assessment," Working Paper Series 2008-19, Federal Reserve Bank of San Francisco.
  5. Oswald, Andrew J. & Wu, Stephen, 2010. "Objective Confirmation of Subjective Measures of Human Well-being: Evidence from the USA," IZA Discussion Papers 4695, Institute for the Study of Labor (IZA).
  6. Clark, Andrew E & Oswald, Andrew J, 1994. "Unhappiness and Unemployment," Economic Journal, Royal Economic Society, vol. 104(424), pages 648-59, May.
  7. Frijters, Paul & Beatton, Tony, 2012. "The mystery of the U-shaped relationship between happiness and age," Journal of Economic Behavior & Organization, Elsevier, vol. 82(2), pages 525-542.
  8. Easterlin, Richard A., 2006. "Life cycle happiness and its sources: Intersections of psychology, economics, and demography," Journal of Economic Psychology, Elsevier, vol. 27(4), pages 463-482, August.
  9. Fliessbach, Klaus & Weber, Bernd & Trautner, P. & Dohmen, Thomas J. & Sunde, Uwe & Elger, C. E. & Falk, Armin, 2007. "Social comparison affects reward-related brain activity in the human ventral striatum," Munich Reprints in Economics 20362, University of Munich, Department of Economics.
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Cited by:
  1. Cheng, Terence Chai & Powdthavee, Nattavudh & Oswald, Andrew J., 2014. "Longitudinal Evidence for a Midlife Nadir in Human Well-being: Results from Four Data Sets," IZA Discussion Papers 7942, Institute for the Study of Labor (IZA).
  2. López Ulloa, Beatriz Fabiola & Møller, Valerie & Sousa-Poza, Alfonso, 2013. "How does subjective well-being evolve with age? A literature review," FZID Discussion Papers 72-2013, University of Hohenheim, Center for Research on Innovation and Services (FZID).
  3. Hannes Schwandt, 2013. "Unmet Aspirations as an Explanation for the Age U-Shape in Human Wellbeing," CEP Discussion Papers dp1229, Centre for Economic Performance, LSE.
  4. Hannes Schwandt, 2013. "Unmet aspirations as an explanation for the age u-shape in human wellbeing," LSE Research Online Documents on Economics 51571, London School of Economics and Political Science, LSE Library.

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