School;
of;
Management,;
China;
University;
of;
Mining;
&;
Technology;
(Beijing),;
P.;
R.;
China,;
Postcode:;
100083;
School;
of;
Management,;
Shandong;
institute;
of;
Business;
and;
Technology,;
P.;
R.;
China,;
Postcode:;
264003;