Inequality, Stress, and Obesity: Socioeconomic Disparities in the Short- and Long-Term Effects of the COVID-19 Pandemic

Journal of the Association for Consumer Research 2023

SMU Cox School of Business Research Paper No. 23-16

29 Pages Posted: 6 Sep 2023

See all articles by Maria Langlois

Maria Langlois

Southern Methodist University (SMU) - Marketing Department

Pierre Chandon

INSEAD

Date Written: August 30, 2023

Abstract

In a longitudinal study of a large sample of Americans, we found that people with a low socioeconomic status (SES) gained more weight during the COVID-19 pandemic, further exacerbating their vulnerability to the SARS-CoV-2 virus. The association between SES and weight gain was mediated by stress, but not by the other environmental or psychological factors suggested by prior research (outdoor time, food scarcity, temporal focus, and wellbeing expectations). A serial mediation demonstrated that stress both decreased energy expenditures (through reduced physical activity) and increased energy intake (through higher and less healthy food intake). A follow-up study revealed that the early effects of the pandemic on weight and behavioral changes persisted 20 months later. Furthermore, stress levels decreased among people with a higher SES, but remained high for those with a lower SES. These findings demonstrate how the COVID-19 pandemic exacerbated health inequalities and provides insights for market-based and government solutions.

Note:

Funding Information: INSEAD

Conflict of Interests: The authors declare no competing interest.

Ethical Approval: The study was approved by the INSEAD IRB. The survey included informed consent and the participants were fully debriefed.

Keywords: Food, Covid, Obesity, Inequality, Eating, Consumer Behavior

JEL Classification: I12, I18, M31, M37, M39, Q18, L66

Suggested Citation

Langlois, Maria and Chandon, Pierre, Inequality, Stress, and Obesity: Socioeconomic Disparities in the Short- and Long-Term Effects of the COVID-19 Pandemic (August 30, 2023). Journal of the Association for Consumer Research 2023, SMU Cox School of Business Research Paper No. 23-16, Available at SSRN: https://ssrn.com/abstract=4556961 or http://dx.doi.org/10.2139/ssrn.4556961

Maria Langlois

Southern Methodist University (SMU) - Marketing Department ( email )

United States

Pierre Chandon (Contact Author)

INSEAD ( email )

Boulevard de Constance
77305 Fontainebleau Cedex
France

HOME PAGE: http://https://www.insead.edu/faculty-research/faculty/pierre-chandon/personal-site

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