Results 11 to 20 of about 4,053,455 (295)

The Modified Instrumental Variable (MIV) for Endogenous Instrumental Variables

open access: yesJournal of Statistical Theory and Applications (JSTA)
This article introduces an estimator aimed at reducing the inconsistency of instrumental variable estimates when the instrument is not fully exogenous.
Nicolas Ronderos Pulido
doaj   +2 more sources

Instrumental variables

open access: yesBritish Journal of Neurosurgery, 2018
Instrumental variables.
Gracious M. Diiro (5324444)   +4 more
openaire   +3 more sources

A Gentle Introduction to Instrumental Variables

open access: yesJournal of Clinical Epidemiology, 2022
Instrumental variables (IV) is a central strategy for identifying causal effects in absence of randomized experiments. Clinicians and epidemiologists may find the intuition of IV easy to grasp by comparison to randomized experiments. Randomization is an ideal IV because treatment is assigned randomly, and hence unaffected by everything else. IV methods
Widding-Havneraas, Tarjei   +1 more
openaire   +5 more sources

Instrumental variable analysis [PDF]

open access: yesNephrology Dialysis Transplantation, 2012
The main advantage of the randomized controlled trial (RCT) is the random assignment of treatment that prevents selection by prognosis. Nevertheless, only few RCTs can be performed given their high cost and the difficulties in conducting such studies.
Stel, V. S.   +3 more
openaire   +4 more sources

Instrumental Variables Regression with Weak Instruments [PDF]

open access: yesEconometrica, 1997
Summary: This paper develops asymptotic distribution theory for single-equation instrumental variables regression when the partial correlations between the instruments and the endogenous variables are weak, here modeled as local to zero. Asymptotic representations are provided for various statistics, including two-stage least squares (TSLS) and limited
Douglas Staiger, James H. Stock
openaire   +2 more sources

Nonparametric instrumental variable estimation [PDF]

open access: yesThe Stata Journal: Promoting communications on statistics and Stata, 2018
In this article, we introduce the commands npiv and npivcv, which implement nonparametric instrumental-variable (NPIV) estimation methods without and with a cross-validated choice of tuning parameters, respectively. Both commands can impose the constraint that the resulting estimated function is monotone.
Denis Chetverikov   +2 more
openaire   +3 more sources

Genetic markers as instrumental variables [PDF]

open access: yesJournal of Health Economics, 2016
The use of genetic markers as instrumental variables (IV) is receiving increasing attention from economists, statisticians, epidemiologists and social scientists. Although IV is commonly used in economics, the appropriate conditions for the use of genetic variants as instruments have not been well defined. The increasing availability of biomedical data,
von Hinke, S   +4 more
openaire   +4 more sources

Instrumental Weighted Variables

open access: yesAustrian Journal of Statistics, 2016
A motivation for the classical Instrumental Variables and the reasons for here-proposed way of their robustification are discussed. The conditions for the ?n-consistency, the existence of Bahadur representation and the asymptotic normality of the ...
Jan Ámos Víšek
doaj   +1 more source

A Robust Instrumental-Variables Estimator [PDF]

open access: yesThe Stata Journal: Promoting communications on statistics and Stata, 2012
The classical instrumental-variables estimator is extremely sensitive to the presence of outliers in the sample. This is a concern because outliers can strongly distort the estimated effect of a given regressor on the dependent variable. Although outlier diagnostics exist, they frequently fail to detect atypical observations because they are themselves
Desbordes, Rodolphe, Verardi, Vincenzo
openaire   +4 more sources

Fertility among women in Ghana: Do child mortality and education matter?

open access: yesScientific African, 2022
Background: Child mortality and fertility are crucial in determining the growth of a country's population and have implications for public health and family planning interventions.
William Angko   +2 more
doaj   +1 more source

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