Anchoring-Adjusted Capital Asset Pricing Model

Hammad Siddiqi

Journal of Behavioral Finance, 2018, vol. 19, issue 3, 249-270

Abstract: What happens when the capital asset pricing model is adjusted for the anchoring and adjustment heuristic of Tversky and Kahneman [1974]? The surprising finding is that adjusting the capital asset pricing model for anchoring provides a plausible unified framework for understanding almost all of the key asset pricing anomalies. The anomalies captured in the theoretical framework include the well-known size and value effects, high alpha of low beta stocks, accruals, low volatility anomaly, momentum effect, stock splits, and reverse stock splits. The market equity premium is also larger with anchoring. This suggests that the anchoring-adjusted capital asset pricing model may provide the needed unifying structure to behavioral finance.

Date: 2018
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DOI: 10.1080/15427560.2018.1378218

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