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Pre-Training Estimators for Structural Models: Application to Consumer Search

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  • Yanhao 'Max' Wei
  • Zhenling Jiang

Abstract

We develop pre-trained estimators for structural econometric models. The estimator uses a neural net to recognize the structural model's parameter from data patterns. Once trained, the estimator can be shared and applied to different datasets at negligible cost and effort. Under sufficient training, the estimator converges to the Bayesian posterior given the data patterns. As an illustration, we construct a pretrained estimator for a sequential search model (available at pnnehome.github.io). Estimation takes only seconds and achieves high accuracy on 12 real datasets. More broadly, pretrained estimators can make structural models much easier to use and more accessible.

Suggested Citation

  • Yanhao 'Max' Wei & Zhenling Jiang, 2025. "Pre-Training Estimators for Structural Models: Application to Consumer Search," Papers 2505.00526, arXiv.org, revised Nov 2025.
    • Handle: RePEc:arx:papers:2505.00526
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    References listed on IDEAS

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