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The CAPM and the Calendar: Empirical Anomalies and the Risk-Return Relationship

Author

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  • Charles Bram Cadsby

    (Department of Economics, University of Guelph, Guelph, Ontario, Canada N1G 2W1)

Abstract

Tinic and West (1984) argue that a tradeoff between risk and return exists only in January. This study demonstrates that it is not just the January Effect on stock returns which is related to the measured risk-return relationship and how that measure is apparently affected by the calendar. Other returns anomalies can also be paired with a conclusion about the relationship between risk and return. For example, risk appears to be rewarded at the turn of the month but not during the rest of the year and late in the week but not early in the week. This paper argues that, given the returns anomalies, the corresponding calendar effects on the risk-return relationship are consistent with the CAPM. Thus, the anomaly to be explained is not the relationship between risk and return focused on by Tinic and West (1984) but rather the calendar related variations in the returns themselves.

Suggested Citation

  • Charles Bram Cadsby, 1992. "The CAPM and the Calendar: Empirical Anomalies and the Risk-Return Relationship," Management Science, INFORMS, vol. 38(11), pages 1543-1561, November.
    • Handle: RePEc:inm:ormnsc:v:38:y:1992:i:11:p:1543-1561
    DOI: 10.1287/mnsc.38.11.1543
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    Cited by:

    1. Harshita & Shveta Singh & Surendra S. Yadav, 2019. "Unique Calendar Effects in the Indian Stock Market: Evidence and Explanations," Journal of Emerging Market Finance, Institute for Financial Management and Research, vol. 18(1_suppl), pages 35-58, April.
    2. Geng, Yuedan & Ye, Qiang & Jin, Yu & Shi, Wen, 2022. "Crowd wisdom and internet searches: What happens when investors search for stocks?," International Review of Financial Analysis, Elsevier, vol. 82(C).
    3. Ziemba, William, 2020. "Parimutuel betting markets: racetracks and lotteries revisited," LSE Research Online Documents on Economics 118873, London School of Economics and Political Science, LSE Library.
    4. Chhabra, Damini & Gupta, Mohit, 2022. "Calendar anomalies in commodity markets for natural resources: Evidence from India," Resources Policy, Elsevier, vol. 79(C).
    5. Shawky, Hany A. & Marathe, Achla, 1995. "Expected stock returns and volatility in a two-regime market," Journal of Economics and Business, Elsevier, vol. 47(5), pages 409-421, December.
    6. Deari Fitim & Ulu Yasemin, 2023. "The Turn-of-the-Month Effect: Evidence from Macedonian Stock Exchange," Studia Universitatis „Vasile Goldis” Arad – Economics Series, Sciendo, vol. 33(3), pages 86-100, September.
    7. Benoît Carmichael & Gilles Boevi Koumou & Kevin Moran, 2021. "The RQE-CAPM : New insights about the pricing of idiosyncratic risk," CIRANO Working Papers 2021s-28, CIRANO.

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