Factor Failures: The Limitations and Pitfalls of Factor Models in Empirical Asset Pricing
- Publication Type:
- Thesis
- Issue Date:
- 2024
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Factor return models are widely used throughout finance in both academic research and industry practice. They are one of the primary tools for evaluating the performance (risk and risk-adjusted returns) of an asset or investment strategy. This thesis examines econometric inconsistencies between the parameter estimates obtained via common applications of factor models and their interpretation by academics and practitioners. We demonstrate that common estimation techniques are plagued by material estimation biases that severely diminish the usefulness of the parameters estimated. As consequence, practitioners are making misguided investment evaluations whilst academics may also be drawing invalid inferences in their own research.
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