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Inference for Regression with Variables Generated by AI or Machine Learning

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arxiv 2402.15585 v5 pith:ACZWYH6J submitted 2024-02-23 econ.EM stat.ML

Laura Battaglia , Timothy Christensen , Stephen Hansen , Szymon Sacher This is my paper
classification econ.EMstat.ML
keywords variablesinferenceregressionestimateslatentlearningmachinemethods
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Researchers now routinely use AI or other machine learning methods to estimate latent variables of economic interest, then plug-in the estimates as covariates in a regression. We show both theoretically and empirically that naively treating AI/ML-generated variables as "data" leads to biased estimates and invalid inference. To restore valid inference, we propose two methods: (1) an explicit bias correction with bias-corrected confidence intervals, and (2) joint estimation of the regression parameters and latent variables. We illustrate these ideas through applications involving label imputation, dimensionality reduction, and index construction via classification and aggregation.

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Cited by 3 Pith papers

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