Achim Ahrens

Names

Identifer

Contact

Affiliations

• ETH Zurich, Departement Geistes-, Sozial- und Staatswissenschaften
  • https://gess.ethz.ch/en/
  • location: Switzerland, Zurich

Research profile

author of:

• lassopack: Model selection and prediction with regularized regression in Stata
  Papers, arXiv.org (2019)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer
  (ReDIF-paper, arx:papers:1901.05397)
• pystacked: Stacking generalization and machine learning in Stata
  Papers, arXiv.org (2022)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer
  (ReDIF-paper, arx:papers:2208.10896)
• ddml: Double/debiased machine learning in Stata
  Papers, arXiv.org (2023)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer & Thomas Wiemann
  (ReDIF-paper, arx:papers:2301.09397)
• Optimal multi-action treatment allocation: A two-phase field experiment to boost immigrant naturalization
  Papers, arXiv.org (2023)
  by Achim Ahrens & Alessandra Stampi-Bombelli & Selina Kurer & Dominik Hangartner
  (ReDIF-paper, arx:papers:2305.00545)
• Model Averaging and Double Machine Learning
  Papers, arXiv.org (2024)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer & Thomas Wiemann
  (ReDIF-paper, arx:papers:2401.01645)
• LASSOPACK: Stata module for lasso, square-root lasso, elastic net, ridge, adaptive lasso estimation and cross-validation
  Statistical Software Components, Boston College Department of Economics (2018)
  by Achim Ahrens & Christian B. Hansen & Mark E Schaffer
  (ReDIF-software, boc:bocode:s458458)
• PDSLASSO: Stata module for post-selection and post-regularization OLS or IV estimation and inference
  Statistical Software Components, Boston College Department of Economics (2018)
  by Achim Ahrens & Christian B. Hansen & Mark E Schaffer
  (ReDIF-software, boc:bocode:s458459)
• PYSTACKED: Stata module for stacking generalization and machine learning in Stata
  Statistical Software Components, Boston College Department of Economics (2022)
  by Achim Ahrens & Christian B. Hansen & Mark E Schaffer
  (ReDIF-software, boc:bocode:s459115)
• DDML: Stata module for Double/Debiased Machine Learning
  Statistical Software Components, Boston College Department of Economics (2023)
  by Achim Ahrens & Christian B. Hansen & Mark E Schaffer & Thomas Wiemann
  (ReDIF-software, boc:bocode:s459175)
• pystacked: Stacking generalization and machine learning in Stata
  Swiss Stata Conference 2022, Stata Users Group (2022)
  by Christian B. Hansen & Mark E. Schaffer & Achim Ahrens
  (ReDIF-paper, boc:csug22:01)
• ddml: Double/debiased machine learning in Stata
  Swiss Stata Conference 2022, Stata Users Group (2022)
  by Christian B. Hansen & Mark E. Schaffer & Thomas Wiemann & Achim Ahrens
  (ReDIF-paper, boc:csug22:02)
• Stacking generalization and machine learning in Stata
  Italian Stata Users' Group Meetings 2022, Stata Users Group (2022)
  by Achim Ahrens
  (ReDIF-paper, boc:isug22:05)
• Double/debiased machine learning in Stata
  Italian Stata Users' Group Meetings 2022, Stata Users Group (2022)
  by Achim Ahrens
  (ReDIF-paper, boc:isug22:06)
• pystacked and ddml: machine learning for prediction and causal inference in Stata
  UK Stata Conference 2023, Stata Users Group (2023)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer & Thomas Wiemann
  (ReDIF-paper, boc:lsug23:12)
• LASSOPACK and PDSLASSO: Prediction, model selection and causal inference with regularized regression
  London Stata Conference 2018, Stata Users Group (2018)
  by Achim Ahrens & Christian B Hansen & Mark E Schaffer
  (ReDIF-paper, boc:usug18:12)
• Civil Conflicts, Economic Shocks and Night-time Lights
  Peace Economics, Peace Science, and Public Policy, De Gruyter (2015)
  by Ahrens Achim
  (ReDIF-article, bpj:pepspp:v:21:y:2015:i:4:p:433-444:n:1)
• Commuting across the Irish border
  Economics Letters, Elsevier (2020)
  by Ahrens, Achim & FitzGerald, John & Lyons, Seán
  (ReDIF-article, eee:ecolet:v:190:y:2020:i:c:s0165176520300677)
• Price regulation, inflation, and nominal rigidity in housing rents
  Journal of Housing Economics, Elsevier (2021)
  by O’Toole, Conor & Martinez-Cillero, Maria & Ahrens, Achim
  (ReDIF-article, eee:jhouse:v:52:y:2021:i:c:s1051137721000218)
• Urban rents and commuting times in Ireland
  Papers, Economic and Social Research Institute (ESRI) (2020)
  by Lyons, Seán & Ahrens,Achim
  (ReDIF-paper, esr:wpaper:rb202018)
• Price regulation, inflation, and nominal rigidity in housing rents
  Papers, Economic and Social Research Institute (ESRI) (2019)
  by O'Toole, Conor & Martinez-Cillero, Maria & Ahrens, Achim
  (ReDIF-paper, esr:wpaper:wp648)
• A review of the methodologies used in compiling owner-occupiers’ housing indices
  Papers, Economic and Social Research Institute (ESRI) (2020)
  by Ahrens, Achim & Beirne, Keelan & Economides, Philip & Kostarakos, Ilias & McQuinn, Kieran & O'Toole, Conor
  (ReDIF-paper, esr:wpaper:wp651)
• Two-Step Lasso Estimation of the Spatial Weights Matrix
  Econometrics, MDPI (2015)
  by Achim Ahrens & Arnab Bhattacharjee
  (ReDIF-article, gam:jecnmx:v:3:y:2015:i:1:p:128-155:d:46534)
• Changes in Land Cover and Urban Sprawl in Ireland From a Comparative Perspective Over 1990–2012
  Land, MDPI (2019)
  by Achim Ahrens & Seán Lyons
  (ReDIF-article, gam:jlands:v:8:y:2019:i:1:p:16-:d:196807)
• Civil conflicts in Africa: Climate, economic shocks, nighttime lights and spill-over effects
  SEEC Discussion Papers, Spatial Economics and Econometrics Centre, Heriot Watt University (2015)
  by Achim Ahrens
  (ReDIF-paper, hwe:seecdp:1501)
• lassopack: Model Selection and Prediction with Regularized Regression in Stata
  IZA Discussion Papers, Institute of Labor Economics (IZA) (2019)
  by Ahrens, Achim & Hansen, Christian B. & Schaffer, Mark E
  (ReDIF-paper, iza:izadps:dp12081)
• The Labor Market Effects of Restricting Refugees' Employment Opportunities
  IZA Discussion Papers, Institute of Labor Economics (IZA) (2023)
  by Ahrens, Achim & Beerli, Andreas & Hangartner, Dominik & Kurer, Selina & Siegenthaler, Michael
  (ReDIF-paper, iza:izadps:dp15901)
• ddml: Double/Debiased Machine Learning in Stata
  IZA Discussion Papers, Institute of Labor Economics (IZA) (2023)
  by Ahrens, Achim & Hansen, Christian B. & Schaffer, Mark E & Wiemann, Thomas
  (ReDIF-paper, iza:izadps:dp15963)
• Model Averaging and Double Machine Learning
  IZA Discussion Papers, Institute of Labor Economics (IZA) (2024)
  by Ahrens, Achim & Hansen, Christian B. & Schaffer, Mark E & Wiemann, Thomas
  (ReDIF-paper, iza:izadps:dp16714)
• The Labor Market Effects of Restricting Refugees’ Employment Opportunities
  KOF Working papers, KOF Swiss Economic Institute, ETH Zurich (2023)
  by Achim Ahrens & Andreas Beerli & Dominik Hangartner & Selina Kurer & Michael Siegenthaler
  (ReDIF-paper, kof:wpskof:22-510)
• Cash-Based Interventions Improve Multidimensional Integration Outcomes of Venezuelan Immigrants
  SocArXiv, Center for Open Science (2023)
  by Ahrens, Achim & Hangartner, Dominik & Casalis, Marine & Sánchez, Rodrigo
  (ReDIF-paper, osf:socarx:5sh8a)
• The Labor Market Effects of Restricting Refugees' Employment Opportunities
  SocArXiv, Center for Open Science (2024)
  by Ahrens, Achim & Beerli, Andreas & Hangartner, Dominik & Kurer, Selina & Siegenthaler, Michael
  (ReDIF-paper, osf:socarx:bqjn2)
• Do rising rents lead to longer commutes? A gravity model of commuting flows in Ireland
  Urban Studies, Urban Studies Journal Limited (2021)
  by Achim Ahrens & Sean Lyons
  (ReDIF-article, sae:urbstu:v:58:y:2021:i:2:p:264-279)
• Do execution moratoriums increase homicide? Re-examining evidence from Illinois
  Applied Economics, Taylor & Francis Journals (2015)
  by A. Ahrens & T. V. Kovandzic & L. M. Vieraitis
  (ReDIF-article, taf:applec:v:47:y:2015:i:31:p:3243-3257)
• Conditionality or specificity? Bulgaria and Romania's economic transition performance in comparative perspective
  Post-Communist Economies, Taylor & Francis Journals (2012)
  by Achim Ahrens & Joachim Zweynert
  (ReDIF-article, taf:pocoec:v:24:y:2012:i:2:p:291-307)
• lassopack: Model selection and prediction with regularized regression in Stata
  Stata Journal, StataCorp LP (2020)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer
  (ReDIF-article, tsj:stataj:v:20:y:2020:i:1:p:176-235)
• pystacked: Stacking generalization and machine learning in Stata
  Stata Journal, StataCorp LP (2023)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer
  (ReDIF-article, tsj:stataj:v:23:y:2023:i:4:p:909-931)
• ddml: Double/debiased machine learning in Stata
  Stata Journal, StataCorp LP (2024)
  by Achim Ahrens & Christian B. Hansen & Mark E. Schaffer & Thomas Wiemann
  (ReDIF-article, tsj:stataj:v:24:y:2024:i:1:p:3-45)