2020 : Ph.D. in Operations Management, University of Gent, Belgium
Published Papers in Refereed Journals
Chen X., YI X., Yang Y., Liu Y., QU X., (2026). Measuring urban road transportation efficiency: nonparametric slack-based analysis with Malmquist and Luenberger productivity indices, Transportation Research: Part A: Policy and Practice, 205 (na) 104845.
