Results 31 to 40 of about 5,857,634 (333)

Mendelian randomization analyses in ocular disease: a powerful approach to causal inference with human genetic data

open access: yesJournal of Translational Medicine, 2022
Ophthalmic epidemiology is concerned with the prevalence, distribution and other factors relating to human eye disease. While observational studies cannot avoid confounding factors from interventions, human eye composition and structure are unique, thus,
Jiaxin Li   +7 more
doaj   +1 more source

Estimation of the Heteroskedastic Canonical Contagion Model with Instrumental Variables. [PDF]

open access: yesPLoS ONE, 2016
Knowledge of contagion among economies is a relevant issue in economics. The canonical model of contagion is an alternative in this case. Given the existence of endogenous variables in the model, instrumental variables can be used to decrease the bias of
André L P Ribeiro, Luiz K Hotta
doaj   +1 more source

Unbiased Instrumental Variables Estimation Under Known First-Stage Sign [PDF]

open access: yes, 2015
We derive mean-unbiased estimators for the structural parameter in instrumental variables models with a single endogenous regressor where the sign of one or more first stage coefficients is known.
Andrews, Isaiah, Armstrong, Timothy B.
core   +8 more sources

Causal mediation analysis in instrumental-variables regressions

open access: yes, 2020
In this article, we describe the use of ivmediate, a new command to estimate causal mediation effects in instrumental-variables settings using the framework developed by Dippel et al. (2020, unpublished manuscript).
C. Dippel   +2 more
semanticscholar   +1 more source

The impact of credit accessibility on rural households clean cooking energy consumption: The case of Ghana

open access: yesEnergy Reports, 2020
This study examined the impact of credit received on rural household clean cooking energy consumption. The study pays more attention to clean energies, such as liquefied petroleum gas (LPG) and kerosene. Due to the endogenous issue of credit, we employed
Martinson Ankrah Twumasi   +4 more
doaj   +1 more source

Heart Rate Variability Control Using a Biofeedback and Wearable System

open access: yesSensors, 2022
Heart rate variability is an important physiological parameter in medicine. This parameter is used as an indicator of physiological and psychological well-being and even of certain pathologies.
Eduardo Viera   +2 more
doaj   +1 more source

Causal Transmission in Reduced-Form Models

open access: yesEconometrics, 2022
We propose a method to explore the causal transmission of an intervention through two endogenous variables of interest. We refer to the intervention as a catalyst variable.
Vassilios Bazinas, Bent Nielsen
doaj   +1 more source

The Causal Interpretation of Two-Stage Least Squares with Multiple Instrumental Variables

open access: yesThe American Economic Review, 2019
Empirical researchers often combine multiple instrumental variables (IVs) for a single treatment using two-stage least squares (2SLS). When treatment effects are heterogeneous, a common justification for including multiple IVs is that the 2SLS estimand ...
M. Mogstad   +2 more
semanticscholar   +1 more source

Identifying causal effects based on instrumental variables and distinguishing different models with data

open access: yesSichuan jingshen weisheng, 2022
The purpose of this paper was to introduce the methods of identifying causal effects based on instrumental variables, distinguishing different models with data, and using SAS software to realize calculation.
Hu Chunyan, Hu Liangping
doaj   +1 more source

On the Estimation of Separable Demand Models

open access: yesJournal of Agricultural and Resource Economics, 1993
Alternative stochastic specification of conditional demand models are considered. The results of LaFrance concerning the inconsistency of least squares are supported, but the class of models that allow standard instrumental variable estimation is ...
David L. Edgerton
doaj   +1 more source

Home - About - Disclaimer - Privacy