Dynamics and sources of wage inequality in Taiwan: Evidence from employer‐employee matched data
利用行政雇主-雇员匹配数据和AKM框架，研究2004-2019年台湾工资不平等下降8.4%的原因，发现企业内差距缩小是主因，最低工资上调可能起推动作用，而工人-企业匹配日益重要。
Abstract This paper studies the decline in wage inequality in Taiwan from 2004 to 2019 using administrative employer‐employee matched data and the Abowd–Kramarz–Margolis (AKM) framework. Unlike the U.S. and Europe, Taiwan experienced an 8.4% drop in wage inequality, driven largely by reductions in within‐firm disparities. Minimum wage hikes likely contributed to this compression, as lower‐tail inequality declined due to faster earnings growth among low‐wage workers, while upper‐tail inequality remained relatively stable. AKM estimates, robust to bias correction, indicate that firm‐specific wage premiums account for a small share of inequality, while worker‐firm sorting has become increasingly important in explaining wage dispersion.