Funding for this research was provided by:
National Social Science Fund of China (17BJY143)
Annual Project of Collaborative Innovation Center of Urban Industries Development in Chengdu-Chongqing Economic Zone (KFJJ2018017)
MOE Project of Key Research Institute of Humanities and Social Sciences: Research Center for Economy of Upper Reaches of the Yangtze River Chongqing Technology and Business University (CJSYTD201701)
Article History
Received: 7 April 2020
Accepted: 29 December 2020
First Online: 18 January 2021