Working Papers

( * indicates our supervised PhD student or postdoctoral fellow)

Finance

  1. Active Mutual Fund Co-Holdings and the Buy-Side Peer Network# with Jingyu He, Yirou Wang*, and Shuhua Xiao*. Jul. 2026
    Return predictabilityInstitutional investorsAnomalies
  2. Inelastic Integration: The Price of Market Access# with Yinghua Fan*, Dashan Huang, and Xiao Qiao. Jul. 2026
    China stock marketInstitutional investorsMean-variance efficiency
  3. One News, Two Markets: LLM-Derived Sentiment and Trading Volume# with Siyu Bie*, Naixin Guo*, and Jingyu He. Jul. 2026
    LLM in FinanceFinancial machine learningFixed income
  4. Modeling Institutional Investors in China# with Dashan Huang and Yinghua Fan*. Jul. 2026
    China stock marketInstitutional investorsFinancial machine learning
  5. Beyond Beta Pricing: Stochastic Discount Factor Selection from Euler-Restricted Traded–Nontraded Factor-Return Models# with Siddhartha Chib, Jingyu He, and Qianshu Zhang*. May 2026 Major Revision, Management Science
    Stochastic discount factorFactor zooBayesian methodsObservable factor modelsAsset pricing tests
  6. Mosaics of Predictability# with Will Cong, Jingyu He, and Yuanzhi Wang*. Apr. 2026
    Return predictabilityConditional asset pricingPanel treeFinancial machine learning
  7. Asset Heterogeneity and Uncommon Factors# with Will Cong, Jingyu He, Junye Li, and Qianshu Zhang*. Apr. 2026
    AnomaliesRisk premiaStochastic discount factorObservable factor modelsBayesian methods
  8. Currency Return Dynamics: What Is the Role of U.S. Macroeconomic Regimes?# with Jingyu He, Junye Li, Lucio Sarno, and Qianshu Zhang*. Mar. 2026
    Risk premiaConditional asset pricingStructural breaks
  9. Do asset pricing models change over time?# with Liyuan Cui, Yongmiao Hong, and Jiangshan Yang*. Mar. 2026
    Conditional asset pricingStochastic discount factorStructural breaksObservable factor models
  10. Schrödinger’s Sparsity in the Cross Section of Stock Returns# with Doron Avramov, Jingyu He, and Shuhua Xiao*. Dec. 2025
    Factor zooConditional asset pricingLatent factor modelsSparsity
  11. Growing Mimicking Portfolios: Estimating Nontraded Factor Risk Premia# with Jingyu He, Jianxin Ma*, and Cesare Robotti. Nov. 2025 Revised & Resubmit, Review of Asset Pricing Studies
    Risk premiaStochastic discount factorLatent factor modelsPanel treeFinancial machine learning

Econometrics & Statistics

  1. Estimation of Coupled Vector-Tensor Group Factor Model# with Liyuan Cui, Yuefeng Han, and Jiayan Li*. May 2026
    High-dimensional inferenceSparsityLatent factor models
  2. Testing Asset Pricing Factor Models: An Out-of-Sample Perspective# with Jun Zhang*, Wei Lan, and Long Feng. May 2026 Major Revision, Journal of Econometrics
    Asset pricing testsObservable factor modelsHigh-dimensional inferenceSparsity
  3. A Hierarchical Group Factor Model with Observable Global and Local Factors# with Jun Zhang*, Yongqiang Wu, Dan Pu, and Wei Lan. Jan. 2026 Reject & Resubmit, Journal of the American Statistical Association
    Observable factor modelsHigh-dimensional inferenceSparsity
  4. Sparse Modeling Under Grouped Heterogeneity with Applications to Asset Pricing# with Will Cong, Jingyu He, and Junye Li. Dec. 2025 Best Paper Award, 2024 China Fintech Research Conference
    SparsityBayesian methodsObservable factor modelsPanel tree

Email: gavinfeng702@outlook.com / gavin.feng@cityu.edu.hk

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