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A Study of Job Cluster and Job Mobilitybased on Job Similarity

Abstract

The purpose of the present study was to cluster similar jobs on the basis of various occupational characteristics, assuming mobility to a job with high similarity as a core-factor of successful job mobility. Also, this study was performed to analyze the impact of job mobility on labor market outcome(i.e., wage). Specifically, a K-means cluster analysis was conducted on the scores of each job in terms of ability, knowledge, personality and interest required for the job with Korea Network for Occupations and Workers(KNOW) DB. Based on the job cluster findings, it was defined operationally as ‘similar job mobility’ when previous jobs and current jobs are included in the same job cluster. On the contrary, it was described as ‘dissimilar job mobility,’ when previous jobs and current jobs are classified into different job clusters. Then, the effects of similar and dissimilar job mobility on job mobility behaviors as well as labor market outcomes were analyzed through Occupational Employment Statistics(OES). The results showed that men tend to move to jobs with similar job ability, whereas women tend to move to jobs with similar interests. Some differences were also shown depending on age, major and employment status. Additionally, in terms of labor market outcomes, mobility to similar jobs had a positive effect on current pay compared to mobility to dissimilar jobs. On the basis of these findings, this study highlights the significance of further research and information production in order to support currently active job mobility.

keywords
직업 유사성, 직업 군집화, 직업이동, 이직, Job Similarity, Job Cluster, Job Mobility, Job Turnover

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