Preprint
The Uncertainty of Machine Learning Predictions in Asset Pricing
ArXiv.org
Cornell University
03/01/2025
DOI: 10.48550/arxiv.2503.00549
Abstract
Machine learning in asset pricing typically predicts expected returns as point estimates, ignoring uncertainty. We develop new methods to construct forecast confidence intervals for expected returns obtained from neural networks. We show that neural network forecasts of expected returns share the same asymptotic distribution as classic nonparametric methods, enabling a closed-form expression for their standard errors. We also propose a computationally feasible bootstrap to obtain the asymptotic distribution. We incorporate these forecast confidence intervals into an uncertainty-averse investment framework. This provides an economic rationale for shrinkage implementations of portfolio selection. Empirically, our methods improve out-of-sample performance.
Details
- Title: Subtitle
- The Uncertainty of Machine Learning Predictions in Asset Pricing
- Creators
- Yuan LiaoXinjie MaAndreas NeuhierlLinda Schilling
- Resource Type
- Preprint
- Publication Details
- ArXiv.org
- DOI
- 10.48550/arxiv.2503.00549
- ISSN
- 2331-8422
- Publisher
- Cornell University; Ithaca, New York
- Language
- English
- Date posted
- 03/01/2025
- Academic Unit
- Economics; Accounting
- Record Identifier
- 9984937788402771
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