# Deep Neural Networks for Estimation and Inference

@article{Farrell2021DeepNN, title={Deep Neural Networks for Estimation and Inference}, author={M. Farrell and Tengyuan Liang and S. Misra}, journal={Econometrica}, year={2021} }

We study deep neural networks and their use in semiparametric inference. We establish novel nonasymptotic high probability bounds for deep feedforward neural nets. These deliver rates of convergence that are sufficiently fast (in some cases minimax optimal) to allow us to establish valid second‐step inference after first‐step estimation with deep learning, a result also new to the literature. Our nonasymptotic high probability bounds, and the subsequent semiparametric inference, treat the…

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