1. Qing Li (corresponding author), Center for Innovation Management Research of Xinjiang, Xinjiang University, Urumqi, Xinjiang, China; School of Economics and Management, Xinjiang University, Urumqi, Xinjiang 830046, China.
2. Qingqing Liu, School of Economics and Management, Xinjiang University, Urumqi, Xinjiang, China.
3. Jie Di, School of Economics and Management, Xinjiang University, Urumqi, Xinjiang, China.