Affiliation: | 1. Department of Economics, Baptist University of Hong Kong, , Kowloon Tong, Hong Kong;2. Energy and Environmental Economics, Inc., , San Francisco, CA, USA;3. Frontier Associates LLC, , Austin, TX, USA;4. LBJ School of Public Affairs and Division of Statistics, The University of Texas at Austin, , Austin, TX, USA;5. Warrington College of Business, University of Florida, , Gainesville, FL, USA;6. Public Utilities Research Center, University of Florida, , Gainesville, FL, USA;7. School of Accounting and Finance, Hong Kong Polytechnic University, , Hung Hom, Kowloon, Hong Kong |