no code implementations • 4 Nov 2023 • Michal Kolesár, Ulrich K. Müller, Sebastian T. Roelsgaard
We show, using three empirical applications, that linear regression estimates which rely on the assumption of sparsity are fragile in two ways.
no code implementations • 30 Mar 2022 • Peter Hull, Michal Kolesár, Christopher Walters
The 2021 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel was awarded to David Card "for his empirical contributions to labour economics" and to Joshua Angrist and Guido Imbens "for their methodological contributions to the analysis of causal relationships."
no code implementations • 14 Nov 2021 • Yingying Dong, Michal Kolesár
In many applications of regression discontinuity designs, the running variable used by the administrator to assign treatment is only observed with error.
no code implementations • 20 Oct 2021 • Joshua Angrist, Michal Kolesár
We revisit the finite-sample behavior of single-variable just-identified instrumental variables (just-ID IV) estimators, arguing that in most microeconometric applications, the usual inference strategies are likely reliable.
1 code implementation • 9 Jun 2021 • Paul Goldsmith-Pinkham, Peter Hull, Michal Kolesár
We study regressions with multiple treatments and a set of controls that is flexible enough to purge omitted variable bias.
no code implementations • 29 Dec 2020 • Timothy B. Armstrong, Michal Kolesár, Soonwoo Kwon
We consider inference on a scalar regression coefficient under a constraint on the magnitude of the control coefficients.
2 code implementations • 7 Apr 2020 • Timothy B. Armstrong, Michal Kolesár, Mikkel Plagborg-Møller
We construct robust empirical Bayes confidence intervals (EBCIs) in a normal means problem.
1 code implementation • 22 Aug 2018 • Timothy B. Armstrong, Michal Kolesár
We show that near-optimal confidence intervals (CIs) can be formed by taking a generalized method of moments (GMM) estimator, and adding and subtracting the standard error times a critical value that takes into account the potential bias from misspecification of the moment conditions.
Econometrics Methodology
1 code implementation • 20 Jun 2018 • Rodrigo Adão, Michal Kolesár, Eduardo Morales
We study inference in shift-share regression designs, such as when a regional outcome is regressed on a weighted average of sectoral shocks, using regional sector shares as weights.
1 code implementation • 13 Dec 2017 • Timothy B. Armstrong, Michal Kolesár
We consider estimation and inference on average treatment effects under unconfoundedness conditional on the realizations of the treatment variable and covariates.
Applications Econometrics Methodology
1 code implementation • 13 Jun 2016 • Michal Kolesár, Christoph Rothe
We consider inference in regression discontinuity designs when the running variable only takes a moderate number of distinct values.
Applications Methodology
1 code implementation • 3 Jun 2016 • Timothy B. Armstrong, Michal Kolesár
We show that using the bandwidth that minimizes the maximum mean-squared error results in CIs that are nearly efficient and that in this case, the critical value depends only on the rate of convergence.
Applications Statistics Theory Statistics Theory
1 code implementation • 19 Nov 2015 • Timothy B. Armstrong, Michal Kolesár
When the function class is centrosymmetric, these efficiency bounds imply that minimax CIs are close to efficient at smooth regression functions.
Statistics Theory Applications Statistics Theory
1 code implementation • 11 Apr 2015 • Michal Kolesár
With respect to a particular weight matrix, the minimum distance estimator is equivalent to the random effects estimator of Chamberlain and Imbens (2004), and the estimator of the coefficient on the endogenous regressor coincides with the limited information maximum likelihood estimator.
Applications
1 code implementation • 30 Nov 2014 • Timothy B. Armstrong, Michal Kolesár
This paper proposes a simple adjustment that gives correct coverage in such situations: replace the normal quantile with a critical value that depends only on the kernel and ratio of the maximum and minimum bandwidths the researcher has entertained.
Applications