1. A Stackelberg reinsurance–investment game with asymmetric information and delay. (3rd October 2021) Authors: Bai, Yanfei; Zhou, Zhongbao; Xiao, Helu; Gao, Rui Journal: Optimization Issue: Volume 70:Number 10(2021) Page Start: 2131 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Big data and portfolio optimization: A novel approach integrating DEA with multiple data sources. (October 2021) Authors: Zhou, Zhongbao; Gao, Meng; Xiao, Helu; Wang, Rui; Liu, Wenbin Journal: Omega Issue: Volume 104(2021) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Energy efficiency and congestion effects analysis for the production system with comprehensive input–output indicators. (December 2022) Authors: Zeng, Ximei; Zhou, Zhongbao; Xiao, Helu; Sun, Wenting; Liu, Wenbin Journal: Computers & industrial engineering Issue: Volume 174(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Environmental efficiency and abatement potential analysis with a two-stage DEA model incorporating the material balance principle. (October 2020) Authors: Zeng, Ximei; Zhou, Zhongbao; Liu, Qing; Xiao, Helu; Liu, Wenbin Journal: Computers & industrial engineering Issue: Volume 148(2020) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Estimation of cardinality constrained portfolio efficiency via segmented DEA. (April 2018) Authors: Zhou, Zhongbao; Jin, Qianying; Xiao, Helu; Wu, Qian; Liu, Wenbin Journal: Omega Issue: Volume 76(2018) Page Start: 28 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. Estimation of fuzzy portfolio efficiency via an improved DEA approach. Issue 3 (2nd July 2020) Authors: Xiao, Helu; Ren, Tiantian; Ren, Teng Journal: Infor Issue: Volume 58:Issue 3(2020) Page Start: 478 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. Estimation of portfolio efficiency in nonconvex settings: A free disposal hull estimator with non-increasing returns to scale. (September 2022) Authors: Xiao, Helu; Zhou, Zhongbao; Ren, Teng; Liu, Wenbin Journal: Omega Issue: Volume 111(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Estimation of portfolio efficiency via DEA. (April 2015) Authors: Liu, Wenbin; Zhou, Zhongbao; Liu, Debin; Xiao, Helu Journal: Omega Issue: Volume 52(2015:Apr.) Page Start: 107 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
9. Measuring the dynamic efficiency of socially responsible investment funds: evidence from dynamic network DEA with diversification. Issue 4 (1st December 2022) Authors: Xiao, Helu; Liu, Xin; Ren, Tiantian; Zhou, Zhongbao Journal: Infor Issue: Volume 60:Issue 4(2022) Page Start: 531 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
10. Multi-source data driven cryptocurrency price movement prediction and portfolio optimization. (1st June 2023) Authors: Zhou, Zhongbao; Song, Zhengyang; Xiao, Helu; Ren, Tiantian Journal: Expert systems with applications Issue: Volume 219(2023) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗