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Testing Alphas in Conditional Time-Varying Factor Models with High Dimensional Assets

Author

Listed:
  • Ma, Shujie

    (University of California, Riverside)

  • Lan, Wei

    (Southwestern University of Finance and Economics, China)

  • Su, Liangjun

    (School of Economics, Singapore Management University)

  • Tsai, Chih-Ling

    (University of California, Davis)

Abstract

For conditional time-varying factor models with high dimensional assets, this article proposes a high dimensional alpha (HDA) test to assess whether there exist abnormal returns on securities (or portfolios) over the theoretical expected returns. To employ this test effectively, a constant coefficient test is also introduced. It examines the validity of constant alphas and factor loadings. Simulation studies and an empirical example are presented to illustrate the finite sample performance and the usefulness of the proposed tests. Using the HDA test, the empirical example demonstrates that the FF three-factor model (Fama and French, 1993) is better than CAPM (Sharpe, 1964) in explaining the mean-variance efficiency of both the Chinese and US stock markets. Furthermore, our results suggest that the US stock market is more efficient in terms of mean-variance efficiency than the Chinese stock market.

Suggested Citation

  • Ma, Shujie & Lan, Wei & Su, Liangjun & Tsai, Chih-Ling, 2018. "Testing Alphas in Conditional Time-Varying Factor Models with High Dimensional Assets," Economics and Statistics Working Papers 9-2018, Singapore Management University, School of Economics.
    • Handle: RePEc:ris:smuesw:2018_009
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    Cited by:

    1. Miao, Ke & Phillips, Peter C.B. & Su, Liangjun, 2023. "High-dimensional VARs with common factors," Journal of Econometrics, Elsevier, vol. 233(1), pages 155-183.
    2. Feng, Long & Lan, Wei & Liu, Binghui & Ma, Yanyuan, 2022. "High-dimensional test for alpha in linear factor pricing models with sparse alternatives," Journal of Econometrics, Elsevier, vol. 229(1), pages 152-175.
    3. Cheng, Tingting & Yan, Cheng & Yan, Yayi, 2021. "Improved inference for fund alphas using high-dimensional cross-sectional tests," Journal of Empirical Finance, Elsevier, vol. 61(C), pages 57-81.
    4. Jianqing Fan & Kunpeng Li & Yuan Liao, 2020. "Recent Developments on Factor Models and its Applications in Econometric Learning," Papers 2009.10103, arXiv.org.
    5. Cui, Junfeng & Wang, Guanghui & Zou, Changliang & Wang, Zhaojun, 2023. "Change-point testing for parallel data sets with FDR control," Computational Statistics & Data Analysis, Elsevier, vol. 182(C).

    More about this item

    Keywords

    Conditional alpha test; High dimensional data; Mean-variance efficiency; Spline estimator; Time-varying coefficient;
    All these keywords.

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