Helmut Farbmacher - Research



Work in progress

1) "Instrument Validity Tests with Causal Trees" (with Raphael Guber)
revise and resubmit (1st round) at Journal of Business and Economic Statistics.

Abstract

2) "Finite Sample Properties of the Anderson and Rubin (1949) Test" (with Maurice Bun and Rutger Poldermans)
revise and resubmit (2nd round) at Econometric Reviews. [ pdf ]

Abstract

3) "The Burden of Child Rearing and Working on Maternal Mortality" (with Tabea Bucher-Koenen, Raphael Guber and Johan Vikström)
revise and resubmit (2nd round) at Demography. [ pdf ]

Abstract

4) "Heterogeneous Effects of Poverty on Cognition" (with Heinrich Kögel and Martin Spindler) [ pdf | replication code ]

Abstract

5) "On the Effect of Imputation on 2SLS Estimation" (with Alexander Kann) [ pdf ]

Abstract

6) "An Explainable Attention Network for Fraud Detection in Claims Management" (with Leander Löw and Martin Spindler) [ pdf ]

Abstract

7) "Estimating Grouped Patterns of Heterogeneity in Repeated Public Goods Experiments" (with Sebastian Bordt) [ pdf ]

Abstract

8) "Channels behind the Relation between Genetic Information and Educational Achievement" [ proposal ]

Published and accepted papers

jasa "On the Use of the Lasso for Instrumental Variables Estimation with Some Invalid Instruments" (with Neil Davies, George Davey Smith and Frank Windmeijer), Journal of the American Statistical Association, forthcoming. [ pdf | software ]
jae "Increasing the Credibility of the Twin Birth Instrument" (with Raphael Guber and Johan Vikström), Journal of Applied Econometrics, 2018, 33(3), 457-472. [ pdf | code ]
es "Semiparametric Count Data Modeling with an Application to Health Service Demand" (with Philipp Bach and Martin Spindler), Econometrics and Statistics, 2018, 8, 125-140. [ pdf ]
he "Heterogeneous Effects of a Nonlinear Price Schedule for Outpatient Care" (with Peter Ihle, Ingrid Schubert, Joachim Winter and Amelie Wuppermann), Health Economics, 2017, 26(10), 1234-1248. [ pdf ]
ael "Testing under a Special Form of Heteroscedasticity" (with Heinrich Kögel), Applied Economics Letters, 2017, 24(4), 264-268. [ pdf | code ]
sim "The Many Weak Instrument Problem and Mendelian Randomization" (with Stephen Burgess, Neil Davies, Stephanie von Hinke Kessler Scholder, George Davey Smith and Frank Windmeijer), Statistics in Medicine, 2015, 34(3), 454-468. [ pdf | software ]
he "Extensions of Hurdle Models for Overdispersed Count Data", Health Economics, 2013, 22(11), 1398-1404. [ pdf | software ]
he "Per-period Co-payments and the Demand for Health Care: Evidence from Survey and Claims Data" (with Joachim Winter), Health Economics, 2013, 22(9), 1111-1123. [ pdf ]
jae "GMM with Many Weak Moment Conditions: Replication and Application of Newey and Windmeijer (2009)", Journal of Applied Econometrics, 2012, 27(2), 343-346. [ pdf | software ]
sj "Estimation of Hurdle Models for Overdispersed Count Data", Stata Journal, 2011, 11(1), 82-94. [ pdf | software ]