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Reassessing the evidence on factor and portfolio premia

  • Agnieszka Jach ORCID logo EMAIL logo and Jan Antell ORCID logo
Published/Copyright: June 26, 2024
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Abstract

Using the modelling and estimation framework of W. Cao, C. Hurvich and P. Soulier (2017), we perform a test of the mean ( T 2 statistic) for a large collection of daily Fama–French factors and portfolio returns, and compare the results with those based on the standard t test. The T 2 -based results provide clearly weaker evidence in favor of various premia and in some cases suggest their absence. On the US market, the discrepancy between the tests is particularly large for the momentum factor. Caution should be exercised when assessing the presence of a given premium with the t test.

MSC 2020: 91B84; 62G09; 91-10

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Received: 2023-10-27
Revised: 2024-02-08
Accepted: 2024-05-27
Published Online: 2024-06-26
Published in Print: 2024-11-01

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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