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http://dx.doi.org/10.7465/jkdi.2015.26.1.65

Determinants of employee's wage using hierarchical linear model  

Park, Sungik (Department of International Trade and Commerce, Kyungsung University)
Cho, Jangsik (Department of Informational Statistics, Kyungsung University)
Publication Information
Journal of the Korean Data and Information Science Society / v.26, no.1, 2015 , pp. 65-75 More about this Journal
Abstract
This paper analyzes the determinants of wage for the college and university graduates utilizing both individual-level and industry-level variables. We note that wage determination has multi-level structure in the sense that individual wage is influenced by individual-level variables (level-1) and industry-level (level-2) variables. Then, the assumption that individual wage is independent in the classical regression is violated. Therefore, this paper utilizes the hierarchical linear model (HLM). The major results are the followings. First, the multiple correspondence analysis including level-1 and 2 variables reveals that both level 1 and level 2 variables affects individual wages judging from the fact that the values of level 1 and level 2 variables differ across the different level of individual wage groups. Second, the decision tree analysis including level-1 and 2 variables shows that the most influential variable in wage determination is industry-level wage and the next is industry-level working hour, ages and sex in the decling order in. This suggests that the utilization of the HLM is appropriate since the characteristics of industry is important in determining the individual wage. Third, it is shown that the HLM model is the best compared to the other models which do not take level-1 and level-2 variables simultaneously into account.
Keywords
Fixed effect; hierarchical linear model; intra class correlation; multi-level; random effect;
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Times Cited By KSCI : 3  (Citation Analysis)
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