1. MOE Key Lab of Econometrics, Xiamen University, Xiamen, People’s Republic of China
2. Wang Yanan Institute for Studies in Economics (WISE), Xiamen University, Xiamen, People’s Republic of China
3. School of Economics, Hainan University, Haikou, People’s Republic of China
4. School of Finance, Zhongnan University of Economics and Law, Wuhan, People’s Republic of China