Most claimed statistical findings in cross-sectional return predictability are likely true

Andrew Y. Chen

Papers from arXiv.org

Abstract: I develop simple and intuitive bounds for the false discovery rate (FDR) in cross-sectional return predictability publications. The bounds can be calculated by plugging in summary statistics from previous papers and reliably bound the FDR in simulations that closely mimic cross-predictor correlations. Most bounds find that at least 75% of findings are true. The tightest bound finds that at least 91% of findings are true. Surprisingly, the estimates in Harvey, Liu, and Zhu (2016) imply a similar FDR. I explain how Harvey et al.'s conclusion that most findings are false stems from misinterpreting ``insignificant factor'' as ``false discovery.''

Date: 2022-06, Revised 2025-01
New Economics Papers: this item is included in nep-ecm
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