The Transfer Performance of Economic Models

Fuente: arXiv
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Autori principali: Andrews, Isaiah, Fudenberg, Drew, Lei, Lihua, Liang, Annie, Wu, Chaofeng
Natura: Preprint
Pubblicazione: 2022
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author Andrews, Isaiah
Fudenberg, Drew
Lei, Lihua
Liang, Annie
Wu, Chaofeng
author_facet Andrews, Isaiah
Fudenberg, Drew
Lei, Lihua
Liang, Annie
Wu, Chaofeng
contents Economists often estimate models using data from a particular domain, e.g. estimating risk preferences in a particular subject pool or for a specific class of lotteries. Whether a model's predictions extrapolate well across domains depends on whether the estimated model has captured generalizable structure. We provide a tractable formulation for this "out-of-domain" prediction problem and define the transfer error of a model based on how well it performs on data from a new domain. We derive finite-sample forecast intervals that are guaranteed to cover realized transfer errors with a user-selected probability when domains are iid, and use these intervals to compare the transferability of economic models and black box algorithms for predicting certainty equivalents. We find that in this application, the black box algorithms we consider outperform standard economic models when estimated and tested on data from the same domain, but the economic models generalize across domains better than the black-box algorithms do.
format Preprint
id arxiv_https___arxiv_org_abs_2202_04796
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle The Transfer Performance of Economic Models
Andrews, Isaiah
Fudenberg, Drew
Lei, Lihua
Liang, Annie
Wu, Chaofeng
Theoretical Economics
Econometrics
Economists often estimate models using data from a particular domain, e.g. estimating risk preferences in a particular subject pool or for a specific class of lotteries. Whether a model's predictions extrapolate well across domains depends on whether the estimated model has captured generalizable structure. We provide a tractable formulation for this "out-of-domain" prediction problem and define the transfer error of a model based on how well it performs on data from a new domain. We derive finite-sample forecast intervals that are guaranteed to cover realized transfer errors with a user-selected probability when domains are iid, and use these intervals to compare the transferability of economic models and black box algorithms for predicting certainty equivalents. We find that in this application, the black box algorithms we consider outperform standard economic models when estimated and tested on data from the same domain, but the economic models generalize across domains better than the black-box algorithms do.
title The Transfer Performance of Economic Models
topic Theoretical Economics
Econometrics
url https://arxiv.org/abs/2202.04796