@article{GONG Yanling:49,
author = {[GONG Yanling,  ZHANG Yushu,  ZHANG Yingliang]},
title = {Measurement and Analysis of Transaction Efficiency in Chengdu-Chongqing Economic Zone from Perspective of “Dual Circulation”},
publisher = {Journal of Beijing University of Posts and Telecommunications(Social Sciences Edition)},
year = {2023},
journal = {Journal of Beijing University of Posts and Telecommunications(Social Sciences Edition)},
volume = {25},
number = {5},
eid = {49},
pages = {49-62},
keywords = {transaction efficiency; Chengdu-Chongqing economic zone; global principal component analysis method; gravity model},
doi = https://journalsk.bupt.edu.cn/EN/10.19722/j.cnki.1008-7729.2023.0066
}