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Journal ArticleDOI

An Illustration of a Pitfall in Estimating the Effects of Aggregate Variables on Micro Units

Brent R. Moulton
- 01 May 1990 - 
- Vol. 72, Iss: 2, pp 334-338
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TLDR
The authors illustrates the danger of spurious regression from this kind of misspecification, using as an example a wage regression estimated on data for individual workers that includes in the specification aggregate regressors for characteristics of geographical states.
Abstract
Many economic researchers have attempted to measure the effect of aggregate market or public policy variables on micro units by merging aggregate data with micro observations by industry, occupation, or geographical location, then using multiple regression or similar statistical models to measure the effect of the aggregate variable on the micro units. The methods are usually based upon the assumption of independent disturbances, which is typically not appropriate for data from populations with grouped structure. Incorrectly using ordinary least squares can lead to standard errors that are seriously biased downward. This note illustrates the danger of spurious regression from this kind of misspecification, using as an example a wage regression estimated on data for individual workers that includes in the specification aggregate regressors for characteristics of geographical states. Copyright 1990 by MIT Press.

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Citations
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Journal ArticleDOI

Are Tax Incentives for Charitable Giving Efficient? Evidence from France

TL;DR: In this paper, the effect of tax incentives for charitable contef butions in France was investigated using a difference-in-difference identification, comparing the evolu tion of contributions for groups of households with similar income, but different taxable status due to differences in family size.
Journal ArticleDOI

Agricultural landscape simplification does not consistently drive insecticide use

TL;DR: It is found that although the proportion of county in cropland—my metric for landscape simplification—was positively correlated with insecticide use in 2007, this relationship is absent or reversed in prior census years and when all years are analyzed together.
Journal ArticleDOI

The Impact of U.S. Economic Growth on the Rest of the World: How Much Does It Matter?

Abstract: This paper attempts to quantify the extent to which U.S. growth is an “engine” of the world economy. Results based on fixed-effects estimation using panel data suggest a significant positive impact of U.S. growth on growth in the rest of the world, especially developing countries, in recent decades. The impact is as large as one-for-one in some specifications. The results are robust to alternative specifications and to the alternative claim that world growth in recent decades has been driven predominantly by common global shocks.
Journal ArticleDOI

Grades and Rank: Impacts of Non-Financial Incentives on Test Performance

TL;DR: In this article, the effects of non-financial incentives on test performance were examined for Swedish primary school students and they found that the intrinsic motivation of students with low skills was more important than intrinsic motivation for students with high skills, while girls responded less to rank-based incentives if tested with less familiar peers.
Journal ArticleDOI

Cluster-Robust Bootstrap Inference in Quantile Regression Models

TL;DR: In this article, a wild bootstrap procedure for cluster-robust inference in linear quantile regression models is proposed, which is easy to implement and performs well even when the number of clusters is much smaller than the sample size.
References
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Book

Statistical abstract of the United States

TL;DR: The Red River of the North basin of the Philippines was considered a part of the Louisiana Purchase by the United States Department of Commerce in the 1939 Census Atlas of the United Philippines as discussed by the authors.
Journal ArticleDOI

Elements of Econometrics.

TL;DR: The Elements of Econometrics as mentioned in this paper is a textbook for upper-level undergraduate and master's degree courses and may usefully serve as a supplement for traditional Ph.D. courses in economics.
Book

Elements of econometrics

Jan Kmenta
TL;DR: The emphasis is on simplification whenever possible, assuming the readers know college algebra and basic calculus, and Jan Kmenta explains all methods within the simplest framework, and generalizations are presented as logical extensions of simple cases.
Journal ArticleDOI

Maximum Likelihood Approaches to Variance Component Estimation and to Related Problems

TL;DR: In this paper, the authors proposed a restricted maximum likelihood (reml) approach which takes into account the loss in degrees of freedom resulting from estimating fixed effects, and developed a satisfactory asymptotic theory for estimators of variance components.
Journal ArticleDOI

Random group effects and the precision of regression estimates

TL;DR: The authors analyzes several empirical examples to investigate the applicability of random effects models and the consequences of inappropriately using ordinary least squares (OLS) estimation in the presence of random group effects.