1. A multi-step procedure to determine the number of factors in large approximate factor models. Issue 17 (9th August 2021) Authors: Luo, Ronghua; Jiang, Jiakun; Lan, Wei; Yan, Chengliang; Ding, Yue Journal: Communications in statistics Issue: Volume 50:Issue 17(2021) Page Start: 3988 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗