Institution: | 1. Department of Mathematics & Statistics, University of North Carolina at Charlotte, Charlotte, NC 28223, USA;2. Wang Yanan Institute for Studies in Economics, Xiamen University, Xiamen, Fujian 361005, China;3. MOE Key Laboratory of Econometrics, Xiamen University, Xiamen, Fujian 361005, China;4. Fujian Key Laboratory of Statistical Sciences, Xiamen University, Xiamen, Fujian 361005, China;5. Department of Economics, Boston College, Chestnut Hill, MA 02467, USA |