The Effect of Adult Children’s Working Hours on Visits to Elderly Parents: A Natural Experiment in Korea
Despite its significant policy implications, little is known about the impact working hours have on how often workers visit their elderly parents. Evidence is particularly lacking on men’s overtime work and workers in Asia. We examine the causal impact of male workers’ working times on parental visits, using a natural experiment to eliminate potential endogeneity bias. In 2004, the Korean government began reducing its legal workweek from 44 to 40 h, gradually expanding it from larger to smaller establishments by 2011. Using annual longitudinal data from the 2005 to 2014 Korea Labor and Income Panel Study (N = 7005 person-waves), we estimated an instrumental variable (IV) fixed-effects (FE) regression model. Our IV was an indicator variable of whether an individual full-time worker’s legal workweek was reduced to 40 h in a given year. The results showed that working one additional hour a week lowered the frequency of visits by 6.5% (95% confidence interval [− 13.0%, 0.0%]), which was not apparent in a FE model without the IV. Working long hours has implications for workers’ interactions with their elderly parents, and the failure to consider endogeneity in actual working hours may understate the negative effect. Reducing work hours may serve as an effective policy intervention for improving the well-being of older adults in rapidly aging Asian countries in a work-oriented and family-centered culture. We also highlight the need for further attention to men’s work hours, which are often considered much less important than women’s work status in population research on intergenerational support.
KeywordsWorking hours Time support for elderly parents Work–family conflict Men’s overtime work Instrumental variable Korea
This work was supported by the Humanities and Social Sciences Research Fund from the National University of Singapore. Sylvia Hao Zhang provided excellent research.
- Jacobs, J. A., & Gerson, K. (2004). The time divide: Work, family, and gender inequality. Cambridge: Harvard University Press.Google Scholar
- Kang, S. (2014, May 12). Overtime lowers efficiency. Maeil Business Newspaper (in Korean).Google Scholar
- Kim, C. (2005). Change in elderly population and households in aging society. Planning and Policy, 280, 6–19. (in Korean).Google Scholar
- Kim, E. H.-W., Lee, C., & Do, Y. K. (forthcoming). The effect of a reduced statutory workweek on familial long-term care in Korea. Journal of Aging and Health.Google Scholar
- Kim, H. (2014, October 28). A society forcing overtime. The Hankyoreh (in Korean).Google Scholar
- Korea Population, Health and Welfare Association. (2018). 2017 Survey of public opinion on low fertility. Seoul: Korea Population, Health and Welfare Association. (in Korean).Google Scholar
- Korean Ministry of Labor. (2007). Manuals for the introduction of 40-hour workweek. Seoul: Korean Ministry of Labor. (in Korean).Google Scholar
- OECD. (2014). OECD labour force statistics. Paris: OECD Publishing.Google Scholar
- OECD. (2018). Poverty rate (indicator). Retrieved July 23, 2018 from https://data.oecd.org/inequality/poverty-rate.htm.
- Raymo, J. M., & Park, H. (2018). Marriage trends in Korea: Changing composition of the domestic marriage market and growth in international marriage. Paper presented at the 2018 annual meeting of the Population Association of America, Denver.Google Scholar
- Ro, J., Park, J., Lee, J., & Jung, H. (2015). Factors that affect suicidal attempt risk among Korean elderly adults: A path analysis. Journal of Preventive Medicine and Public Health, 48(1), 28.Google Scholar
- Rossi, A., & Rossi, P. (1990). Of human bonding: Parent–child relations across the lifecourse. New York: Aldine de Gruyter.Google Scholar
- Statistics Korea. (2018). K indicator: The proportion of non-salaried workers. Retrieved July 30, 2018, from http://www.index.go.kr/unify/idx-info.do?idxCd=4014 (in Korean).
- Stock, J. H., & Watson, M. W. (2010). Introduction to econometrics (3rd ed.). Boston: Addison-Wesley.Google Scholar
- Taiwan’s Ministry of the Interior. (2005). Report of senior citizen conditions survey. Taipei: Taiwan’s Ministry of the Interior.Google Scholar
- The World Bank. (2018). How does the World Bank classify countries? Retrieved July 22, 2018, from https://datahelpdesk.worldbank.org/knowledgebase/articles/378834-how-does-the-world-bank-classify-countries.
- United Nations, Department of Economic and Social Affairs, Population Division. (2015). World Population Prospects: The 2015 Revision. Retrieved December 7, 2015 from http://esa.un.org/unpd/wpp/DataQuery/.