Optimal Post-Hoc Theorizing

Fuente: arXiv
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Auteur principal: Chen, Andrew Y.
Format: Preprint
Publié: 2025
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author Chen, Andrew Y.
author_facet Chen, Andrew Y.
contents For many economic questions, the empirical results are not interesting unless they are strong. For these questions, theorizing before the results are known is not always optimal. Instead, the optimal sequencing of theory and empirics trades off a ``Darwinian Learning'' effect from theorizing first with a ``Statistical Learning'' effect from examining the data first. This short paper formalizes the tradeoff in a Bayesian model. In the modern era of mature economic theory and enormous datasets, I argue that post hoc theorizing is typically optimal.
format Preprint
id arxiv_https___arxiv_org_abs_2505_10370
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Optimal Post-Hoc Theorizing
Chen, Andrew Y.
Econometrics
General Finance
Methodology
For many economic questions, the empirical results are not interesting unless they are strong. For these questions, theorizing before the results are known is not always optimal. Instead, the optimal sequencing of theory and empirics trades off a ``Darwinian Learning'' effect from theorizing first with a ``Statistical Learning'' effect from examining the data first. This short paper formalizes the tradeoff in a Bayesian model. In the modern era of mature economic theory and enormous datasets, I argue that post hoc theorizing is typically optimal.
title Optimal Post-Hoc Theorizing
topic Econometrics
General Finance
Methodology
url https://arxiv.org/abs/2505.10370