Showing 1 - 10 of 357
We investigate whether local average treatment effects (LATE's) can be extrapolated to new settings. We extend the analysis and framework of Dehejia, Pop-Eleches, and Samii (2015), which examines the external validity of the Angrist-Evans (1998) reduced-form natural experiment of having two...
Persistent link: https://www.econbiz.de/10013013180
This paper introduces an instrumental variables estimator for the effect of a binary treatment on the quantiles of potential outcomes. The quantile treatment effects (QTE) estimator accommodates exogenous covariates and reduces to quantile regression as a special case when treatment status is...
Persistent link: https://www.econbiz.de/10013215680
Instrumental Variables (IV) methods identify internally valid causal effects for individuals whose treatment status is manipulable by the instrument at hand. Inference for other populations requires some sort of homogeneity assumption. This paper outlines a theoretical framework that nests all...
Persistent link: https://www.econbiz.de/10013219964
Applied economists have long struggled with the question of how to accommodate binary endogenous regressors in models with binary and non-negative outcomes. I argue here that much of the difficulty with limited-dependent variables comes from a focus on structural parameters, such as index...
Persistent link: https://www.econbiz.de/10013213450
The causal effects of fertility are a central focus in the social sciences, but the analysis is challenged by the … endogeneity of fertility choices. Earlier work has proposed several “natural experiments” from twin births or gender composition … rare (twins) and weak (gender composition) instrumental variables for fertility. This paper proposes a new “natural …
Persistent link: https://www.econbiz.de/10014261429
agree on wanting a child. Using newly available data on fertility preferences and outcomes, we show that indeed, babies are … low-fertility countries women are much more likely than men to be opposed to having another child. We account for this … mothers and fathers is a key determinant of fertility. The model implies that fertility is highly responsive to targeted …
Persistent link: https://www.econbiz.de/10012996885
This paper develops a covariate-based approach to the external validity of instrumental variables (IV) estimates. Assuming that differences in observed complier characteristics are what make IV estimates differ from one another and from parameters like the effect of treatment on the treated, we...
Persistent link: https://www.econbiz.de/10013135416
This paper is the first to use the method of instrumental variables (IV) to estimate the impact of obesity on medical costs in order to address the endogeneity of weight and to reduce the bias from reporting error in weight. Models are estimated using data from the Medical Expenditure Panel...
Persistent link: https://www.econbiz.de/10013137013
This paper examines the correlated random coefficient model. It extends the analysis of Swamy (1971, 1974), who pioneered the uncorrelated random coefficient model in economics. We develop the properties of the correlated random coefficient model and derive a new representation of the variance...
Persistent link: https://www.econbiz.de/10013137320
The recent literature on instrumental variables (IV) features models in which agents sort into treatment status on the basis of gains from treatment as well as on baseline-pretreatment levels. Components of the gains known to the agents and acted on by them may not be known by the observing...
Persistent link: https://www.econbiz.de/10013116685