Research on Performance Appraisal Comparison Between ETFs and Other Open-Ended Funds in China Based on DEA Model
YAN Yi, FENG Xin-hai, TANG Zhen-zhen
JOURNAL OF HEBEI UNIVERSITY (Philosophy and Social Science) . 2019, (3): 51 -60 .  DOI: 10.3969/j.issn.1005-6378.2019.03.009