Xianfeng, Li , School of Economics and Management, Chongqing Normal University, Chongqing, 401311, China.
Xin, Liu , School of International Trade and Economics, University of International Business and Economics Beijing, China.
Xinxin, Jin, School of Literature and Language, Jiangsu University, Zhenjiang, Jiangsu, Zhenjiang, People’s Republic of China.

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