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An Advanced Time-Varying Capital Asset Pricing Model via Heterogeneous Autoregressive Framework: Evidence from the Chinese Stock Market

Author

Listed:
  • Bohan Zhao

    (School of Mathematics, Renmin University of China, Beijing 100872, China)

  • Hong Yin

    (School of Mathematics, Renmin University of China, Beijing 100872, China)

  • Yonghong Long

    (School of Mathematics, Renmin University of China, Beijing 100872, China)

Abstract

The capital asset pricing model (CAPM) is a foundational asset pricing model that is widely applied and holds particular significance in the globally influential Chinese stock market. This study focuses on the banking sector, enhancing the performance of the CAPM and further assessing its applicability within the Chinese stock market context. This study incorporates a heterogeneous autoregressive (HAR) component into the CAPM framework, developing a CAPM-HAR model with time-varying beta coefficients. Empirical analysis based on high-frequency data demonstrates that the CAPM-HAR model not only enhances the capability of capturing market fluctuations but also significantly improves its applicability and predictive accuracy for stocks in the Chinese banking sector.

Suggested Citation

  • Bohan Zhao & Hong Yin & Yonghong Long, 2024. "An Advanced Time-Varying Capital Asset Pricing Model via Heterogeneous Autoregressive Framework: Evidence from the Chinese Stock Market," Mathematics, MDPI, vol. 13(1), pages 1-14, December.
    • Handle: RePEc:gam:jmathe:v:13:y:2024:i:1:p:41-:d:1554002
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