An Adversarial Approach to Structural Estimation
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2020
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| _version_ | 1866916082183307264 |
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| author | Kaji, Tetsuya Manresa, Elena Pouliot, Guillaume |
| author_facet | Kaji, Tetsuya Manresa, Elena Pouliot, Guillaume |
| contents | We propose a new simulation-based estimation method, adversarial estimation, for structural models. The estimator is formulated as the solution to a minimax problem between a generator (which generates simulated observations using the structural model) and a discriminator (which classifies whether an observation is simulated). The discriminator maximizes the accuracy of its classification while the generator minimizes it. We show that, with a sufficiently rich discriminator, the adversarial estimator attains parametric efficiency under correct specification and the parametric rate under misspecification. We advocate the use of a neural network as a discriminator that can exploit adaptivity properties and attain fast rates of convergence. We apply our method to the elderly's saving decision model and show that our estimator uncovers the bequest motive as an important source of saving across the wealth distribution, not only for the rich. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2007_06169 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | An Adversarial Approach to Structural Estimation Kaji, Tetsuya Manresa, Elena Pouliot, Guillaume Econometrics Machine Learning Statistics Theory Methodology We propose a new simulation-based estimation method, adversarial estimation, for structural models. The estimator is formulated as the solution to a minimax problem between a generator (which generates simulated observations using the structural model) and a discriminator (which classifies whether an observation is simulated). The discriminator maximizes the accuracy of its classification while the generator minimizes it. We show that, with a sufficiently rich discriminator, the adversarial estimator attains parametric efficiency under correct specification and the parametric rate under misspecification. We advocate the use of a neural network as a discriminator that can exploit adaptivity properties and attain fast rates of convergence. We apply our method to the elderly's saving decision model and show that our estimator uncovers the bequest motive as an important source of saving across the wealth distribution, not only for the rich. |
| title | An Adversarial Approach to Structural Estimation |
| topic | Econometrics Machine Learning Statistics Theory Methodology |
| url | https://arxiv.org/abs/2007.06169 |