Application of DEA method on identifying a portfolio
CUI Yu-quan1, MA Li-jie2, ZHAO Jing3, BAI Jin-yan4
1. School of Mathematics, Shandong University, Jinan 250100, Shandong, China;
2. School of Mathematics, Shandong Normal University, Jinan 250104, Shandong, China;
3. Division of Science and Technology, University of Science and Technology of China, Hefei 230026, Anhui, China;
4. School of Statistics, Renmin University of China, Beijing 100872, China
