Chongqing University of Posts and Telecommunications, Chongqing University of Posts and Telecommunications, Chongqing University of Posts and Telecommunications, Chongqing University of Posts and Telecommunications, Chongqing University of Posts and Telecommunications, Chongqing University of Posts and Telecommunications, Chongqing University of Posts and Telecommunications, Chongqing University of Posts and Telecommunications, Georgia Southern University, Georgia Southern University and affiliation not provided to SSRN