Retraction Note: Assessing the efficiency of innovation entities in China: evidence from a nonhomogeneous data envelopment analysis and tobit

Electronic Commerce Research
Yu Zhu1, Feng Yang2, Bo Gong1, Wei Zeng3
1School of Economics and Management, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
2School of Management, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
3School of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, 310000, Zhejiang, People's Republic of China

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Electronic Commerce Research

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