대졸 청년층 성별 임금격차 변화와 요인분해분석

This study analyzed the gender wage gap of youth college graduates using raw data of the additional survey by type of employment of the survey on the economically active population. Recently, the employment rate of women has increased significantly compared to that of men, and the gender wage gap has also decreased due to the postponement and abandonment of marriage and childbirth, and mitigation of career disruption. The increase in the employment rate of women changes the composition of groups of women in the labor market, so it is necessary to consider the issue of selection bias to understand the trend of the gender wage gap. Therefore, we estimated the OLS model and compared it by estimating the Heckman two-step model to adjust the selection bias. Furthermore, Using Blinder-Oaxaca decomposition, we decomposed factor of gender wage gap. According to the analysis, the average wage for women is upward biased, and the gender wage gap increases when the selection bias is adjusted, but the influence of the selection bias has been decreasing recently. The selection bias of women, which were significant in 2004, gradually declined and disappeared in 2019. However, due to the impact of the labor market in 2020, the level of upward bias of the average wage for women has increased sharply again. This suggests that the selection bias will be greatly affected by changes in the pattern of women's labor market participation, and affect changes in the gender wage gap.