跨境电子商务生产要素投入效率评价
张夏恒1,2
Evaluation on Input Efficiency of Cross-border E-commerce Production Factor
ZHANG Xia-heng1,2
北京邮电大学学报(社科版) . 2020, (1): 30 -35 .  DOI: 10.19722/j.cnki.1008-7729.2019.0341