activity
20092025
most citedGoodness-of-Fit Tests based on Series Estimators in Nonparametric Instrumental Regression

26 citations · 42 across the 10 of their papers we have counts for

collaborators

13 papers

econ.EM2025

Quantile Selection in the Gender Pay Gap

Egshiglen Batbayar, Christoph Breunig, Peter Haan +1

We propose a new approach to estimate selection-corrected quantiles of the gender wage gap. Our method employs instrumental variables that explain variation in the latent variable…

econ.EM2022

Double Robust Bayesian Inference on Average Treatment Effects

Christoph Breunig, Ruixuan Liu, Zhengfei Yu

We propose a double robust Bayesian inference procedure on the average treatment effect (ATE) under unconfoundedness. For our new Bayesian approach, we first adjust the prior distr…

econ.EM2021★ 2 cited

Testability of Reverse Causality Without Exogenous Variation

Christoph Breunig, Patrick Burauel

This paper shows that testability of reverse causality is possible even in the absence of exogenous variation, such as in the form of instrumental variables. Instead of relying on…

math.ST2021

Simple Adaptive Estimation of Quadratic Functionals in Nonparametric IV Models

Christoph Breunig, Xiaohong Chen

This paper considers adaptive, minimax estimation of a quadratic functional in a nonparametric instrumental variables (NPIV) model, which is an important problem in optimal estimat…

econ.EM2020

Nonclassical Measurement Error in the Outcome Variable

Christoph Breunig, Stephan Martin

We study a semi-/nonparametric regression model with a general form of nonclassical measurement error in the outcome variable. We show equivalence of this model to a generalized re…

econ.EM2020★ 1 cited

Adaptive, Rate-Optimal Hypothesis Testing in Nonparametric IV Models

Christoph Breunig, Xiaohong Chen

We propose a new adaptive hypothesis test for inequality (e.g., monotonicity, convexity) and equality (e.g., parametric, semiparametric) restrictions on a structural function in a…

econ.EM2019★ 26 cited

Goodness-of-Fit Tests based on Series Estimators in Nonparametric Instrumental Regression

Christoph Breunig

This paper proposes several tests of restricted specification in nonparametric instrumental regression. Based on series estimators, test statistics are established that allow for t…

econ.EM2019★ 8 cited

Specification Testing in Nonparametric Instrumental Quantile Regression

Christoph Breunig

There are many environments in econometrics which require nonseparable modeling of a structural disturbance. In a nonseparable model with endogenous regressors, key conditions are…

econ.EM2018

Nonparametric Regression with Selectively Missing Covariates

Christoph Breunig, Peter Haan

We consider the problem of regression with selectively observed covariates in a nonparametric framework. Our approach relies on instrumental variables that explain variation in the…

econ.EM2018

Ill-posed Estimation in High-Dimensional Models with Instrumental Variables

Christoph Breunig, Enno Mammen, Anna Simoni

This paper is concerned with inference about low-dimensional components of a high-dimensional parameter vector which is identified through instrumental variables. We allow fo…

econ.EM2018

Varying Random Coefficient Models

Christoph Breunig

This paper provides a new methodology to analyze unobserved heterogeneity when observed characteristics are modeled nonlinearly. The proposed model builds on varying random coeffic…

math.ST2011★ 1 cited

Adaptive estimation of functionals in nonparametric instrumental regression

Christoph Breunig, Jan Johannes

We consider the problem of estimating the value l(ϕ) of a linear functional, where the structural function ϕ models a nonparametric relationship in presence of instrumental variabl…

math.ST2009★ 4 cited

On rate optimal local estimation in nonparametric instrumental regression

Christoph Breunig, Jan Johannes

We consider the problem of estimating the value of a linear functional in nonparametric instrumental regression, where in the presence of an instrument W a response Y is modeled in…