The effects of sleep duration on child health and development

Nguyen, Ha and Zubrick, Stephen and Mitrou, Francis (2024): The effects of sleep duration on child health and development. Published in: Journal of Economic Behavior & Organization , Vol. May, No. 221 (May 2024): pp. 35-51.

Abstract

Children and adolescents spend more than one-third of their time sleeping. Yet, we know little about the causal impact of sleeping on their development. This paper is the first to exploit variation in local daily daylight duration measured on pre-determined diary dates across the same individuals through time as an instrument in an individual fixed effects regression model to draw causal estimates of sleep duration on a comprehensive set of child development indicators. Applying this model to about 50 thousand time use diaries from two cohorts of Australian children spanning over 16 years, we first document that children sleep substantially less on days with longer daylight duration. Our results show that sleeping longer improves selected general developmental, behavioural and health outcomes in children and adolescents. By contrast, sleeping more statistically significantly increases the BMI scores, mainly by increasing the risk of being overweight. Moreover, while the impact of sleep duration on general and behavioural outcomes is more pronounced for females or older individuals, the effect on BMI is largely driven by males. The results indicate a null or relatively small positive impact of sleeping longer on cognitive skills.

• Item Type: MPRA Paper
• Language: English
• Keywords: Sleep; Time Allocation; Circadian Rhythms; Human Capital; Child Development
• Subjects: I - Health, Education, and Welfare > I0 - General > I00 - General; I - Health, Education, and Welfare > I1 - Health > I12 - Health Behavior; J - Labor and Demographic Economics > J2 - Demand and Supply of Labor > J22 - Time Allocation and Labor Supply; J - Labor and Demographic Economics > J2 - Demand and Supply of Labor > J24 - Human Capital ; Skills ; Occupational Choice ; Labor Productivity

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