[1] Southwest Jiaotong Univ, Sch Econ & Management, Chengdu, Sichuan, Peoples R China
[2] Southwest Jiaotong Univ, Sch Econ & Management, Div Construct Management, Chengdu, Sichuan, Peoples R China
[3] Cornell Univ, Air Qual Earth & Atmospher Sci, Dept Civil & Environm Engn, New York, NY 10021 USA