North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, Dalian Maritime University, North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, affiliation not provided to SSRN, affiliation not provided to SSRN, North China University of Water Resources and Electric Power, North China University of Water Resources and Electric Power, University of Nottingham, Ningbo - University of Nottingham Ningbo China and North China University of Water Resources and Electric Power