AI 中文总结
该研究聚焦韩国劳动力市场，发现该国整体性别薪酬差距达29%，但大学毕业生入职时条件性差距仅4.3%，经修正后仍小，差距主要在入职后随年龄增长扩大，表明差距并非源于进入阶段。
AI 中文摘要
生命周期中，较大的性别工资差距在何时出现？韩国拥有经合组织（OECD）中最大的性别薪酬差距，达29%。2008-2019年期间，近期大学毕业生的条件性差距仅为4.3%，从5.0%降至3.0%；采用半参数、机器学习及区间估计方法对全职工资就业的差异选择进行修正后，该差距保持不变。在已观测的劳动者中，剩余差距处于分布顶端。在韩国面板数据中，经修正的差距在 prime-age（黄金年龄段）劳动力中扩大了数倍，此时选择修正具有首要影响。韩国的性别差距主要产生于进入劳动力市场之后。
英文摘要
When in the lifecycle does a large gender wage gap emerge? South Korea has the largest gender pay gap in the OECD, 29%. Among recent college graduates the conditional gap is only 4.3% over 2008-2019, falling from 5.0% to 3.0%, and correcting for differential selection into full-time wage employment with semiparametric, machine-learning, and bounds methods leaves it unchanged. Among observed workers what remains sits at the top of the distribution. In Korean panel data the corrected gap widens severalfold across the prime-age workforce, where the selection correction becomes first order. Korea's gender disparity is mostly generated after entry.
