Zhang Xuhai, Liu Ziyang, Yu Cheng, Li Fangyu, Gao Liankui, & Wu Tianfei. (2026). Measuring the Economic Returns of Vocational Digital Skills and Their Heterogeneity in the Digital Economy Transformation from Korean Labor Market. Journal of Exploration of Vocational Education, 3(1), 68–81. https://doi.org/10.63650/jeve.v3i1.103