@article{SHAN Yuan-yuan:45, author = {[SHAN Yuan-yuan, XU Ge-yi]}, title = {Differential Analysis of Impact of Imported Producer Services #br# on Manufacturing Value Chain Upgrading#br# —Dual Perspectives Based on Import Quality and Quantity#br#}, publisher = {Journal of Beijing University of Posts and Telecommunications(Social Sciences Edition)}, year = {2021}, journal = {Journal of Beijing University of Posts and Telecommunications(Social Sciences Edition)}, volume = {23}, number = {2}, eid = {45}, pages = {45-55}, keywords = {imported producer services; manufacturing industry; global value chain; systematic GMM estimation}, doi = https://journalsk.bupt.edu.cn/EN/10.19722/j.cnki.1008-7729.2020.0287 }