Achim Ahrens

Spatial econometrics and the Lasso estimator : theory and applications

Achim Ahrens, A. Ahrens, 2017 .

A Theory-Based Lasso for Time-Series Data

Jan Ditzen, Christopher Aitken, Mark E. Schaffer, 2020 .

lassopack: Model selection and prediction with regularized regression in Stata

Mark E. Schaffer, Achim Ahrens, Christian B. Hansen, 2019, 1901.05397.

LASSOPACK and PDSLASSO: Prediction, model selection and causal inference with regularized regression

Mark E. Schaffer, Achim Ahrens, Christian Hansen, 2018 .

Using Machine Learning Methods to Support Causal Inference in Econometrics

Christopher Aitken, Mark E. Schaffer, Achim Ahrens, 2020 .

Two-Step Lasso Estimation of the Spatial Weights Matrix

Arnab Bhattacharjee, Achim Ahrens, A. Bhattacharjee, 2015 .