Search Results for author: Victor Chernozhukov

Found 46 papers, 19 papers with code

Estimating Causal Effects of Discrete and Continuous Treatments with Binary Instruments

no code implementations9 Mar 2024 Victor Chernozhukov, Iván Fernández-Val, Sukjin Han, Kaspar Wüthrich

This representation allows us to introduce an identifying assumption, so-called copula invariance, that restricts the local dependence of the copula with respect to the treatment propensity.

Arellano-Bond LASSO Estimator for Dynamic Linear Panel Models

no code implementations1 Feb 2024 Victor Chernozhukov, Iván Fernández-Val, Chen Huang, Weining Wang

However, the estimator is severely biased when the data's time series dimension $T$ is long due to the large degree of overidentification.

Time Series

DoubleMLDeep: Estimation of Causal Effects with Multimodal Data

no code implementations1 Feb 2024 Sven Klaassen, Jan Teichert-Kluge, Philipp Bach, Victor Chernozhukov, Martin Spindler, Suhas Vijaykumar

This paper explores the use of unstructured, multimodal data, namely text and images, in causal inference and treatment effect estimation.

Causal Inference Marketing

Hedonic Prices and Quality Adjusted Price Indices Powered by AI

no code implementations28 Apr 2023 Patrick Bajari, Zhihao Cen, Victor Chernozhukov, Manoj Manukonda, Suhas Vijaykunar, Jin Wang, Ramon Huerta, Junbo Li, Ling Leng, George Monokroussos, Shan Wan

To accomplish this, we generate abstract product attributes, or ``features,'' from text descriptions and images using deep neural networks, and then use these attributes to estimate the hedonic price function.

An MCMC Approach to Classical Estimation

no code implementations18 Jan 2023 Victor Chernozhukov, Han Hong

This paper studies computationally and theoretically attractive estimators called the Laplace type estimators (LTE), which include means and quantiles of Quasi-posterior distributions defined as transformations of general (non-likelihood-based) statistical criterion functions, such as those in GMM, nonlinear IV, empirical likelihood, and minimum distance methods.

Future-Dependent Value-Based Off-Policy Evaluation in POMDPs

1 code implementation NeurIPS 2023 Masatoshi Uehara, Haruka Kiyohara, Andrew Bennett, Victor Chernozhukov, Nan Jiang, Nathan Kallus, Chengchun Shi, Wen Sun

Finally, we extend our methods to learning of dynamics and establish the connection between our approach and the well-known spectral learning methods in POMDPs.

Off-policy evaluation

Long Story Short: Omitted Variable Bias in Causal Machine Learning

1 code implementation26 Dec 2021 Victor Chernozhukov, Carlos Cinelli, Whitney Newey, Amit Sharma, Vasilis Syrgkanis

Therefore, simple plausibility judgments on the maximum explanatory power of omitted variables (in explaining treatment and outcome variation) are sufficient to place overall bounds on the size of the bias.

BIG-bench Machine Learning Causal Inference

Causal Bias Quantification for Continuous Treatments

no code implementations17 Jun 2021 Gianluca Detommaso, Michael Brückner, Philip Schulz, Victor Chernozhukov

We extend the definition of the marginal causal effect to the continuous treatment setting and develop a novel characterization of causal bias in the framework of structural causal models.

Selection bias

A Simple and General Debiased Machine Learning Theorem with Finite Sample Guarantees

no code implementations31 May 2021 Victor Chernozhukov, Whitney K. Newey, Rahul Singh

Debiased machine learning is a meta algorithm based on bias correction and sample splitting to calculate confidence intervals for functionals, i. e. scalar summaries, of machine learning algorithms.

BIG-bench Machine Learning Learning Theory

Uniform Inference on High-dimensional Spatial Panel Networks

no code implementations16 May 2021 Victor Chernozhukov, Chen Huang, Weining Wang

We propose employing a debiased-regularized, high-dimensional generalized method of moments (GMM) framework to perform inference on large-scale spatial panel networks.

Deeply-Debiased Off-Policy Interval Estimation

1 code implementation10 May 2021 Chengchun Shi, Runzhe Wan, Victor Chernozhukov, Rui Song

Off-policy evaluation learns a target policy's value with a historical dataset generated by a different behavior policy.

Off-policy evaluation

DoubleML -- An Object-Oriented Implementation of Double Machine Learning in Python

3 code implementations7 Apr 2021 Philipp Bach, Victor Chernozhukov, Malte S. Kurz, Martin Spindler

DoubleML is an open-source Python library implementing the double machine learning framework of Chernozhukov et al. (2018) for a variety of causal models.

BIG-bench Machine Learning valid

Vector quantile regression and optimal transport, from theory to numerics

no code implementations25 Feb 2021 Guillaume Carlier, Victor Chernozhukov, Gwendoline de Bie, Alfred Galichon

In this paper, we first revisit the Koenker and Bassett variational approach to (univariate) quantile regression, emphasizing its link with latent factor representations and correlation maximization problems.

regression

The Association of Opening K-12 Schools with the Spread of COVID-19 in the United States: County-Level Panel Data Analysis

1 code implementation20 Feb 2021 Victor Chernozhukov, Hiroyuki Kasahara, Paul Schrimpf

This paper empirically examines how the opening of K-12 schools and colleges is associated with the spread of COVID-19 using county-level panel data in the United States.

Adversarial Estimation of Riesz Representers

no code implementations30 Dec 2020 Victor Chernozhukov, Whitney Newey, Rahul Singh, Vasilis Syrgkanis

Furthermore, we use critical radius theory -- in place of Donsker theory -- to prove asymptotic normality without sample splitting, uncovering a ``complexity-rate robustness'' condition.

Nearly optimal central limit theorem and bootstrap approximations in high dimensions

no code implementations17 Dec 2020 Victor Chernozhukov, Denis Chetverikov, Yuta Koike

In this paper, we derive new, nearly optimal bounds for the Gaussian approximation to scaled averages of $n$ independent high-dimensional centered random vectors $X_1,\dots, X_n$ over the class of rectangles in the case when the covariance matrix of the scaled average is non-degenerate.

Probability Statistics Theory Statistics Theory 60F05, 62E17

Minimax Semiparametric Learning With Approximate Sparsity

no code implementations27 Dec 2019 Jelena Bradic, Victor Chernozhukov, Whitney K. Newey, Yinchu Zhu

This paper is about the feasibility and means of root-n consistently estimating linear, mean-square continuous functionals of a high dimensional, approximately sparse regression.

regression

Distributional conformal prediction

1 code implementation17 Sep 2019 Victor Chernozhukov, Kaspar Wüthrich, Yinchu Zhu

We propose a robust method for constructing conditionally valid prediction intervals based on models for conditional distributions such as quantile and distribution regression.

Conformal Prediction counterfactual +5

Semi-Parametric Efficient Policy Learning with Continuous Actions

1 code implementation NeurIPS 2019 Mert Demirer, Vasilis Syrgkanis, Greg Lewis, Victor Chernozhukov

Our results also apply if the model does not satisfy our semi-parametric form, but rather we measure regret in terms of the best projection of the true value function to this functional space.

Off-policy evaluation

A $t$-test for synthetic controls

1 code implementation27 Dec 2018 Victor Chernozhukov, Kaspar Wuthrich, Yinchu Zhu

We propose a practical and robust method for making inferences on average treatment effects estimated by synthetic controls.

valid

Closing the U.S. gender wage gap requires understanding its heterogeneity

no code implementations11 Dec 2018 Philipp Bach, Victor Chernozhukov, Martin Spindler

In 2016, the majority of full-time employed women in the U. S. earned significantly less than comparable men.

regression

Valid Simultaneous Inference in High-Dimensional Settings (with the hdm package for R)

no code implementations13 Sep 2018 Philipp Bach, Victor Chernozhukov, Martin Spindler

Due to the increasing availability of high-dimensional empirical applications in many research disciplines, valid simultaneous inference becomes more and more important.

valid

Shape-Enforcing Operators for Point and Interval Estimators

no code implementations4 Sep 2018 Xi Chen, Victor Chernozhukov, Iván Fernández-Val, Scott Kostyshak, Ye Luo

A common problem in econometrics, statistics, and machine learning is to estimate and make inference on functions that satisfy shape restrictions.

Econometrics

Uniform Inference in High-Dimensional Gaussian Graphical Models

1 code implementation30 Aug 2018 Sven Klaassen, Jannis Kück, Martin Spindler, Victor Chernozhukov

Graphical models have become a very popular tool for representing dependencies within a large set of variables and are key for representing causal structures.

Vocal Bursts Intensity Prediction

De-Biased Machine Learning of Global and Local Parameters Using Regularized Riesz Representers

no code implementations23 Feb 2018 Victor Chernozhukov, Whitney Newey, Rahul Singh

To achieve this property, we include the Riesz representer for the functional as an additional nuisance parameter.

BIG-bench Machine Learning

Estimation and Inference on Heterogeneous Treatment Effects in High-Dimensional Dynamic Panels under Weak Dependence

no code implementations28 Dec 2017 Vira Semenova, Matt Goldman, Victor Chernozhukov, Matt Taddy

The first step of our procedure is orthogonalization, where we partial out the controls and unit effects from the outcome and the base treatment and take the cross-fitted residuals.

Causal Inference Model Selection +2

Identification of hedonic equilibrium and nonseparable simultaneous equations

no code implementations27 Sep 2017 Victor Chernozhukov, Alfred Galichon, Marc Henry, Brendan Pass

This paper derives conditions under which preferences and technology are nonparametrically identified in hedonic equilibrium models, where products are differentiated along more than one dimension and agents are characterized by several dimensions of unobserved heterogeneity.

Attribute

Debiased Machine Learning of Conditional Average Treatment Effects and Other Causal Functions

no code implementations21 Feb 2017 Vira Semenova, Victor Chernozhukov

This paper provides estimation and inference methods for the best linear predictor (approximation) of a structural function, such as conditional average structural and treatment effects, and structural derivatives, based on modern machine learning (ML) tools.

BIG-bench Machine Learning

Double/Debiased/Neyman Machine Learning of Treatment Effects

no code implementations30 Jan 2017 Victor Chernozhukov, Denis Chetverikov, Mert Demirer, Esther Duflo, Christian Hansen, Whitney Newey

A more general discussion and references to the existing literature are available in Chernozhukov, Chetverikov, Demirer, Duflo, Hansen, and Newey (2016).

BIG-bench Machine Learning valid

Generic Inference on Quantile and Quantile Effect Functions for Discrete Outcomes

1 code implementation18 Aug 2016 Victor Chernozhukov, Iván Fernández-Val, Blaise Melly, Kaspar Wüthrich

In both applications, the outcomes of interest are discrete rendering existing inference methods invalid for obtaining uniform confidence bands for quantile and quantile effects functions.

Methodology Econometrics 62F25, 62G15, 62P20

hdm: High-Dimensional Metrics

no code implementations1 Aug 2016 Victor Chernozhukov, Chris Hansen, Martin Spindler

In this article the package High-dimensional Metrics (\texttt{hdm}) is introduced.

regression valid +1

High-Dimensional Metrics in R

4 code implementations5 Mar 2016 Victor Chernozhukov, Chris Hansen, Martin Spindler

The package High-dimensional Metrics (\Rpackage{hdm}) is an evolving collection of statistical methods for estimation and quantification of uncertainty in high-dimensional approximately sparse models.

regression valid +1

The Sorted Effects Method: Discovering Heterogeneous Effects Beyond Their Averages

1 code implementation17 Dec 2015 Victor Chernozhukov, Ivan Fernandez-Val, Ye Luo

They are as convenient and easy to report in practice as the conventional average partial effects.

Methodology Econometrics

Vector Quantile Regression: An Optimal Transport Approach

1 code implementation18 Jun 2014 Guillaume Carlier, Victor Chernozhukov, Alfred Galichon

Under correct specification, the notion produces strong representation, $Y=\beta \left(U\right) ^\top f(Z)$, for $f(Z)$ denoting a known set of transformations of $Z$, where $u \longmapsto \beta(u)^\top f(Z)$ is a monotone map, the gradient of a convex function, and the quantile regression coefficients $u \longmapsto \beta(u)$ have the interpretations analogous to that of the standard scalar quantile regression.

Methodology 49Q20, 49Q10, 90B20

Program Evaluation and Causal Inference with High-Dimensional Data

no code implementations11 Nov 2013 Alexandre Belloni, Victor Chernozhukov, Ivan Fernández-Val, Christian Hansen

In the latter case, our approach produces efficient estimators and honest bands for (functional) average treatment effects (ATE) and quantile treatment effects (QTE).

Causal Inference valid +1

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