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KMID : 1022120230250020067
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Health and Welfare
2023 Volume.25 No. 2 p.67 ~ p.85
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Job Insecurity and Workers' Subjective Health: An Instrumental Variable Analysis
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Kim Joon-Young
Oh Hea-Eun
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Abstract
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Using the 6th Korean Working Condition Survey(KWCS), this study examines the effects of perceived subjective employment insecurity on health. In order to examine the causality of the effects of employment insecurity on workers' health, this study uses a two-stage probit model that utilizes the "involuntary turnover rate at the 2-digit industry" derived from the Employment Insurance DB as an instrumental variable. Analysis results show that employment insecurity has a statistically significant negative impact on worker’s health, both in the simple probit models and in the instrumental variable models that consider the potential endogeneity of job insecurity. On the other hand, the negative effects of job insecurity on health are not inconsistent in the analysis by subgroup. The negative effects of job insecurity on health are relatively evident in vulnerable labor markets groups, such as women, temporary and daily workers, the elderly, and non-unionized business workers. However, for sub-groups with relatively favorable working conditions, such as permanent workers, men, and workers in unionized workplaces, the relationship between job insecurity and health is either statistically insignificant or positively significant. These findings suggest that inequalities in job stability across sub-groups might lead to growing health inequalities in the labor market.
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KEYWORD
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Job insecurity, Health, Korea working environment survey, Endogeneity, Instrumental variable analysis
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