LI Yang

Dr Yang Li is Associate Professor of Marketing at Cheung Kong Graduate School of Business (CKGSB). He received a Ph.D. in Marketing from Columbia University, a M.S. in Biomedical Engineering from Columbia University, and a B.S. in Electronics from Peking University. His research focuses on statistical machine learning and Bayesian nonparametrics, with applications including online recommenders, text mining, choice modeling, etc. Professor Li has published on leading academic journals such as Management Science, Marketing Science, and Journal of Marketing Research. At CKGSB, Dr. Li teaches marketing management to DBA, EMBA, MBA, and Executive Education. He has also consulted for Tencent, Baidu, The Trade Desk (China), Haier and Tmall.

Areas of Expertise

Machine Learning, Bayesian Nonparametrics, Big Data, Choice Modeling, Text Mining, Recommender Systems

Education

Columbia University, New York, NY

• Ph.D., Marketing, 2012
• M.Phil., Marketing, 2012
• M.S., Biomedical Engineering, 2007

Peking University, Beijing, China

• B.S., Electronics Science, 2005

Publications

Research

• “Does Price Elasticity Vary with Economic Growth? A Cross-Category Analysis” with Brett Gordon and Avi Goldfarb, Journal of Marketing Research, 2013, 50(1), 4-23. (Lead Article).
• (SAS and Stata codes available upon request)
• “A Bayesian Semiparametric Approach for Endogeneity and Heterogeneity in Consumer Choice Models” with Asim Ansari, Management Science, 2014, 60(5), 1161-1179.
  
• (C code available upon request)
• “An Empirical Study of National vs. Local Pricing by Chain Stores under Competition” with Brett Gordon and Oded Netzer, Marketing Science, 2018, 37(5), 812-837.
• (Matlab code available upon request)
• “Probabilistic Topic Model for Hybrid Recommender Systems: A Stochastic Variational Bayesian Approach” with Asim Ansari and Jonathan Z. Zhang, Marketing Science, 2018, 37(6), 987-1008.
• (Mathematica code available upon request)
• “Modeling Dynamic Heterogeneity using Gaussian Processes” with Ryan Dew and Asim Ansari, Journal of Marketing Research, 2020, 57(1), 55-77. (Stan codes available upon request)
• “Conversational Dynamics: Discovering When Employee Language Matters” with Grant Packard and Jonah Berger, 2021, under review.
• “Contextual Set-Based Music Recommendations using Interlocked Hypergraph Convolutional Neural Networks” with Khaled Boughanmi and Asim Ansari, 2022, under review
• “Fair Bandits” with Bob Rombach and Gui Liberali, 2022.
• “Dynamic Triggering Effects for Online Contents: A Bayesian Nonparametric Approach” with Jinnan Huang and Jiapeng Liu, 2022.
• “Modeling Category Captain Management with Dynamics and Demand Uncertainty” with Oded Koenigsberg.