중국 1,2,3선 도시 메이크업 및 네일아트 종사자의 직무 만족도 요인 분석: SHAP기반 비교 연구

The purpose of this study is to systematically analyze the factors affecting job satisfaction among makeup and nail art professionals residing in three distinct tiers of cities in China: Shanghai, Qingdao, and Yiwu. Job satisfaction, being inherently multidimensional, is examined in the specific occupational contexts of makeup and nail art, with five key variables identified: development of technical competence, opportunities for self-expression, quality of interaction with clients, work-life balance, and job security. To evaluate the relative importance of these variables on job satisfaction, the study employed a Random Forest model and conducted SHAP (SHapley Additive exPlanations) analysis to interpret the contributions of individual variables and their interaction patterns. The results reveal that in Shanghai, the development of technical competence is the most influential factor for job satisfaction. In Qingdao, the quality of client interaction outweighs work-life balance, while in Yiwu, opportunities for self-expression emerge as the primary driver of job satisfaction, with job security playing a significant complementary role. The complex effects of interactions among these factors on job satisfaction were further clarified through SHAP analysis. For instance, in Shanghai, technical competence amplifies the positive effects of client interaction quality, whereas in Yiwu, the combination of creative self-expression and job security substantially enhances job satisfaction. These findings provide a robust theoretical and empirical foundation for understanding the key determinants of job satisfaction among makeup and nail art professionals. They also underscore the need for region-specific, tailored policy interventions. However, the study is constrained by its reliance on samples from specific regions and single-timepoint data, suggesting the necessity for future research to address these limitations to yield more generalizable insights.