A Bayesian Re-Interpretation of “significant” empirical financial research

Ralf Kellner and Daniel Rösch

Finance Research Letters, 2021, vol. 38, issue C

Abstract: Currently, the use of t statistics and p-values is under scrutiny in various scientific fields for several reasons: p-hacking, data dredging, misinterpretation or selective reporting, among others. To the best of our knowledge, this discussion has hardly reached the empirical finance community. The aim of this paper is to show how typical testing frameworks of empirical findings in finance can be fruitfully enriched by supplemental use of further statistical tools. We revisit popular studies regarding the validity of the CAPM and determine Bayesian measures for hypothesis testing, e.g., we find popular asset pricing studies might have been evaluated differently.

Keywords: p-value; t-statistic; empirical finance; CAPM; Bayesian statistics (search for similar items in EconPapers)
JEL-codes: F30 G00 G11 G15 (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:finlet:v:38:y:2021:i:c:s1544612319309997

DOI: 10.1016/j.frl.2019.101402

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