作者机构:[1]School of Finance, Anhui University of Finance and Economics, Bengbu 233030, China, [2]School of Banking and Finance, University of Business and Economics, Beijing 100029, China, [3]MADIS, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China
相关基金:This paper is supported by the National Nature Science Foundation of China under Grant No. 71101001 and the National Nature Science Foundation of China and the Research Grants Council of Hong Kong under Grant No. 70731160635.