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本文针对建筑工人特征,构建了扩展的Mincer方程,并利用江苏南通建筑工人的调查数据,分析建筑工人职业资格与日工资之间的关系。控制人力资本变量和其他相关变量后,发现持有职业资格证书能为建筑工人带来13%的额外收入,这种收益主要来源于职业资格对于人力资本水平的提升。最后,提出了完善建筑工人职业资格制度的相关建议。
In this paper, according to the characteristics of construction workers, an extended Mincer equation is constructed. Based on the survey data of construction workers in Nantong, Jiangsu, the paper analyzes the relationship between occupational qualifications and daily wage of construction workers. After controlling for human capital variables and other related variables, it was found that holding an occupational qualification certificate could bring about 13% extra income for construction workers, mainly due to the increase of professional qualifications for human capital. Finally, some suggestions on how to improve the vocational qualification system for construction workers are put forward.