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User profiles for author:"Karim Chalak"

Karim Chalak

Assistant Professor of Economics, Boston College
Verified email at bc.edu
Cited by 160

Viewpoint: An extended class of instrumental variables for the estimation of causal effects

[PDF] from ucsd.edu
Full text - MIT Libraries
K Chalak… - Canadian Journal of Economics/Revue …, 2011 - Wiley Online Library
Abstract We examine how structural systems can yield observed variables instrumental in
identifying and estimating causal effects. We provide an exhaustive characterization of
potentially identifying conditional exogeneity relationships and demonstrate how structural ...
Cited by 32 - Related articles - All 37 versions

[PDF] A Unified Framework for Defining and Identifying Causal Effects

[PDF] from psu.edu
H White… - UCSD Department of Economics Discussion Paper, 2006 - Citeseer
Abstract This paper unifies three complementary approaches to defining, identifying, and
estimating causal effects: the classical structural equations approach of the Cowles
Commision; the treatment effects framework of Rubin (1974) and Rosenbaum and Rubin ( ...
Cited by 21 - Related articles - View as HTML - All 8 versions

[CITATION] VAn Extended Class of Instrumental Variables for the Estimation of Causal Effects

K Chalak… - V Canadian Journal of Economics, 2011
Cited by 13 - Related articles

[PDF] Independence and conditional independence in causal systems

[PDF] from psu.edu
K Chalak… - UCSD Department of Economics Discussion Paper, 2007 - Citeseer
Abstract We study the interrelations between (conditional) independence and causal rela $
tions in settable systems. We provide definitions in terms of functional dependence for direct,
indirect, and total causality as well as for (indirect) causality via and ex# clusive of a set of ...
Cited by 12 - Related articles - View as HTML - All 22 versions

[PDF] VIdentifying Structural Effects in Nonseparable Sys $ tems Using Covariates

[PDF] from bc.edu
H White… - V UCSD Department of Economics Discussion …, 2008 - fmwww.bc.edu
Abstract This paper demonstrates the extensive scope of an alternative to standard
instrumental variables methods, namely covariate&based methods, for identifying and es&
timating effects of interest in general structural systems. As we show, commonly used ...
Cited by 11 - Related articles - View as HTML - All 8 versions

[PDF] Estimating average marginal effects in nonseparable structural systems

[PDF] from eea-esem.com
S Schennach, H White… - V UCSD Department of …, 2007 - eea-esem.com
Abstract We study nonparametric estimators of derivative ratio $ based average marginal
effects of an endogenous cause, X, on a response of interest, Y, for a system of recursive
structural equations. The system need not exhibit linearity, separability, or monotonicity. ...
Cited by 10 - Related articles - View as HTML - All 12 versions

[PDF] Identification with conditioning instruments in causal systems

[PDF] from cide.info
K Chalak… - UCSD Department of Economics discussion paper, 2007 - cide.info
Abstract: We study the structural identification of causal effects with conditioning instruments
within the settable system framework. In particular, we provide causal and predictive
conditions sufficient for conditional exogeneity to hold. We provide two procedures based ...
Cited by 9 - Related articles - View as HTML - All 14 versions

[PDF] Parametric and Nonparametric Estimation of Covariate-Conditioned Average Causal Effects

[PDF] from ucsd.edu
H White… - UCSD Department of Economics Discussion …, 2006 - econ.ucsd.edu
ABSTRACT This paper unifies three complementary approaches to defining, identifying, and
estimating causal effects: the classical structural equations approach of the Cowles
Commision; the treatment effects framework of Rubin (1974) and Rosenbaum and Rubin ( ...
Cited by 7 - Related articles - View as HTML - All 5 versions

[CITATION] oAn Extended Class of Instrumental Variables for the Estimation of Causal Effects. pUCSD Department of Economics Discussion Paper

K Chalak… - 2009
Cited by 5 - Related articles

Local indirect least squares and average marginal effects in nonseparable structural systems

[PDF] from bc.edu
S Schennach, H White… - Journal of Econometrics, 2011 - Elsevier
We study the scope of local indirect least squares (LILS) methods for nonparametrically
estimating average marginal effects of an endogenous cause X on a response Y in
triangular structural systems that need not exhibit linearity, separability, or monotonicity in ...
Cited by 5 - Related articles - Get it from MIT Libraries - All 10 versions

Testing a conditional form of exogeneity

[PDF] from bc.edu
Full text - MIT Libraries
H White… - Economics Letters, 2010 - Elsevier
We give two new approaches to testing conditional exogeneity. This condition ensures
unconfoundedness and identification of structural effects. Our approaches permit the
presence of treatment effects under the null, thereby complementing methods of ...
Cited by 4 - Related articles - All 10 versions

[PDF] Causality, conditional independence, and graphical separation in settable systems

[PDF] from bc.edu
K Chalak… - 2010 - bc.edu
Abstract We study the connections between causal relations and conditional independence
within the settable systems extension of the Pearl Causal Model. Our analysis clearly
distinguishes between causal notions and probabilistic notions and does not formally rely ...
Cited by 3 - Related articles - View as HTML - All 7 versions

[PDF] Identification and Identification Failure for Treatment Effects using Structural Systems

[PDF] from bc.edu
H White… - UC San Diego, Department of Economics Discussion …, 2011 - bc.edu
Abstract We provide necessary and suffi cient conditions for effect identification, thereby
charac $ terizing the limits to identification. Our results link the non $ structural potential
outcome frame $ work for identifying and estimating treatment effects to structural ...
Cited by 3 - Related articles - View as HTML - All 2 versions

[PDF] VIndependence and Conditional Independence in Structural Systems

[PDF] from nyu.edu
K Chalak… - V Boston College Department of Economics …, 2008 - econ.as.nyu.edu
Abstract We study the interrelations between (conditional) independence and causal rela $
tions in systems of structural equations. We provide definitions in terms of functional
dependence for direct, indirect, and total causality as well as for (indirect) causality via and ...
Cited by 3 - Related articles - View as HTML - All 3 versions

[CITATION] Independence and Conditional Independence in Causal Systems. Ms

H White… - 2007
Cited by 2 - Related articles

[CITATION] A Unified Framework for Defining and Identifying Causal Effects. UCSD Department of Economics Discussion Paper

H White… - 2006
Cited by 2 - Related articles

[CITATION] oIdentifying Effects of Endogenous Causes in Non% separable Systems Using Covariates, pUCSD Department of Economics Discussion Paper

H White… - 2009
Cited by 2 - Related articles

[PDF] Linking Granger Causality and the Pearl Causal Model with Settable Systems

[PDF] from mit.edu
H White, K Chalak… - Boston College Working Papers in …, 2010 - jmlr.csail.mit.edu
Abstract The causal notions embodied in the concept of Granger causality have been
argued to belong to a different category than those of Judea Pearl's Causal Model, and so
far their relation has remained obscure. Here, we demonstrate that these concepts are in ...
Cited by 1 - Related articles - View as HTML - All 11 versions

[PDF] Identification of local treatment effects using a proxy for an instrument

[PDF] from ucr.edu
K Chalak - V Boston College Department of Economics …, 2010 - economics.ucr.edu
Abstract The method of indirect least squares (ILS) using a proxy for a discrete instrument is
shown to identify a weighted average of local treatment effects. The weights are nonnegative
if and only if the proxy is intensity preserving for the instrument. A similar result holds for ...
Cited by 1 - Related articles - View as HTML - All 24 versions

[PDF] Instrumental Variables Methods with Heterogeneity and Mismeasured Instruments

[PDF] from bc.edu
K Chalak - 2012 - bc.edu
Abstract We study the consequences of using mismeasured instruments on the interpreta#
tion of the Wald and Instrumental Variables (IV) estimands in ordered discrete choice
structural systems with heterogeneity. We provide a notion for a proxy vector W for an ...
Related articles - View as HTML - All 2 versions

[PDF] Identification without Exogeneity under Equiconfounding in Linear Recursive Structural Systems

[PDF] from bc.edu
K Chalak - 2012 - bc.edu
Abstract This paper obtains identification of structural coeffi cients in linear recursive sys $
tems of structural equations without requiring that observable variables are exogenous or
conditionally exogenous. In particular, standard instrumental variables and con $ trol ...
Related articles - View as HTML - All 2 versions

[PDF] Essays on the definition, identification, and estimation of causal effects

[PDF] from escholarship.org
KM Chalak - 2007 - escholarship.org
Page 1. ...
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