@article{mlpr2021, title = {(Machine) Learning Parameter Regions}, journal = {Journal of Econometrics}, volume = {222}, number = {1, Part C}, pages = {716-744}, year = {2021}, issn = {0304-4076}, doi = {https://doi.org/10.1016/j.jeconom.2020.06.008}, url = {https://www.sciencedirect.com/science/article/pii/S0304407620302177}, author = {José Luis {Montiel Olea} and James Nesbit} }