2 citations · 3 across the 2 of their papers we have counts for
3 papers
econ.EM2026★ 2 cited
The Generalized Falsification Adaptive Set for Violations of the Exclusion Restriction and Exogeneity
Nicolas Apfel, Frank Windmeijer
The falsification adaptive set (FAS) as proposed by Masten and Poirier (2021) provides an identified set for a treatment effect when the baseline model is falsified, assuming inval…
econ.EM2026★ 1 cited
Learning control variables and instruments for causal analysis in observational data
Nicolas Apfel, Julia Hatamyar, Martin Huber +1
This study introduces a data-driven, machine learning-based method to detect suitable control variables and instruments for assessing the causal effect of a treatment on an outcome…
econ.GN2026
Out-of-sample gravity predictions and trade policy counterfactuals
Nicolas Apfel, Holger Breinlich, Nick Green +3
Gravity equations are often used to evaluate the effects of trade policies, such as regional trade agreements. We argue that their suitability for this purpose critically depends o…