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Kahn, James A. - 1989

Does an observation constitute stronger evidence for a theory if it was made after rather than before the theory was … formulated, when it may have influenced the theory's construction? Philosophers have discussed this question (of "novel … and then constructs a theory) versus structural models with formal econometric tests (where a model is constructed before …

Persistent link: https://www.econbiz.de/10012475887

Using Weights to Adjust for Sample Selection When Auxiliary Information is Available

Nevo, Aviv - 2001

In this paper I analyze GMM estimation when the sample is not a random draw from the population of interest. I exploit auxiliary information, in the form of moments from the population of interest, in order to compute weights that are proportional to the inverse probability of selection. The...

Persistent link: https://www.econbiz.de/10012470143

Empirical Bayes Forecasts of One Time Series Using Many Predictors

Knox, Thomas - 2001

We consider both frequentist and empirical Bayes forecasts of a single time series using a linear model with T observations and K orthonormal predictors. The frequentist formulation considers estimators that are equivariant under permutations (reorderings) of the regressors. The empirical Bayes...

Persistent link: https://www.econbiz.de/10012470584

A Graphical Analysis of Some Basic Results in Social Choice

Cantillon, Estelle - 2001

We use a simple graphical approach to represent Social Welfare Functions that satisfy Independence of Irrelevant Alternatives and Anonymity. This approach allows us to provide simple and illustrative proofs of May's Theorem, of variants of classic impossibility results, and of a recent result on...

Persistent link: https://www.econbiz.de/10012470585

The Conventional Treatment of Seasonality in Business Cycle Analysis : Does it Create Distortions?

Christiano, Lawrence J. - 2000

Persistent link: https://www.econbiz.de/10012470708

Instrumental Variables, Selection Models, and Tight Bounds on the Average Treatment Effect

Heckman, James J. - 2000

This paper exposits and relates two distinct approaches to bounding the average treatment effect. One approach, based on instrumental variables, is due to Manski (1990, 1994), who derives tight bounds on the average treatment effect under a mean independence form of the instrumental variables...

Persistent link: https://www.econbiz.de/10012470929

Bias from Classical and Other Forms of Measurement Error

Hyslop, Dean R. - 2000

We consider the implications of a specific alternative to the classical measurement error model, in which the data are optimal predictions based on some information set. One motivation for this model is that if respondents are aware of their ignorance they may interpret the question what is the...

Persistent link: https://www.econbiz.de/10012470931

Direct Estimation of Policy Impacts

Ichimura, Hidehiko - 2000

This paper specifies a general set of conditions under which the impacts of a policy can be identified using data generated under a different policy regime. We show that some of the policy impacts can be identified under relatively weak conditions on the data and structure of a model. Based on...

Persistent link: https://www.econbiz.de/10012471035

External Treatment Effects and Program Implementation Bias

Philipson, Tomas J. - 2000

This paper discusses the definition and identification of external treatment effects and experimental designs capable of detecting these effects. External effects occur when the outcome of a given individual is affected by the treatment assignments of other individuals. The paper argues that...

Persistent link: https://www.econbiz.de/10012471322

Estimation of Limited-Dependent Variable Models with Dummy Endogenous Regressors : Simple Strategies for Empirical Practice

Angrist, Joshua D. - 2000

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/10012471324

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