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Testing for Structural Breaks in Return-Based Style Regression Models

Author

Listed:
  • Yunmi Kim

    (Univ of Seoul)

  • Douglas Stone

    (Allianz Global Investors)

  • Tae-Hwan Kim

    (Yonsei Univ)

Abstract

It is important for investors to know not only the style of a fund manager in whom they are interested, but also whether this style is constant or changing through time. The style is now easily identified by the so-called style regression. However, there has been no formal and statistically valid method to test for a change in manager style when the two typically imposed restrictions (sum-to-one and non-negativity) are jointly present in style analysis. In this study, we apply and extend the results of Andrews (1997a, 1997b, 1999, 2000) to develop a valid testing procedure for the possibility wherein the location of any possible change does not need to be specified and the case of multiple shifts is accommodated. When our proposed test is applied to the Fidelity Magellan Fund, it is revealed that the fund’s style changed at least twice between 1988 and 2017.

Suggested Citation

  • Yunmi Kim & Douglas Stone & Tae-Hwan Kim, 2020. "Testing for Structural Breaks in Return-Based Style Regression Models," Working papers 2020rwp-165, Yonsei University, Yonsei Economics Research Institute.
    • Handle: RePEc:yon:wpaper:2020rwp-165
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    References listed on IDEAS

    as
    1. Laurens Swinkels & Pieter Van Der Sluis, 2006. "Return-based style analysis with time-varying exposures," The European Journal of Finance, Taylor & Francis Journals, vol. 12(6-7), pages 529-552.
    2. Darolles, Serge & Vaissié, Mathieu, 2012. "The alpha and omega of fund of hedge fund added value," Journal of Banking & Finance, Elsevier, vol. 36(4), pages 1067-1078.
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    4. Jan Annaert & Geert Van Campenhout, 2007. "Time Variation in Mutual Fund Style Exposures," Review of Finance, European Finance Association, vol. 11(4), pages 633-661.
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    7. Tae-Hwan Kim, 2005. "Asymptotic and Bayesian Confidence Intervals for Sharpe-Style Weights," Journal of Financial Econometrics, Oxford University Press, vol. 3(3), pages 315-343.
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    JEL classification:

    • C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
    • C18 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Methodolical Issues: General

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