王 娟 | 张平文 https://www.math.pku.edu.cn/pzhang/zh/authors/juan-wang/ 王 娟 Wowchemy (https://wowchemy.com)zh-HansSat, 01 Jan 2022 00:00:00 +0000 https://www.math.pku.edu.cn/pzhang/zh/authors/juan-wang/avatar_hu9a5297bcbac8b7424d40fc17961fe5c4_49931_270x270_fill_q75_lanczos_center.jpg 王 娟 https://www.math.pku.edu.cn/pzhang/zh/authors/juan-wang/ The comparative study on the digital economy and trade between China, the U.S. and the EU https://www.math.pku.edu.cn/pzhang/zh/publication/2022_csdetbcue/ Sat, 01 Jan 2022 00:00:00 +0000 https://www.math.pku.edu.cn/pzhang/zh/publication/2022_csdetbcue/