Correcting for Primary Study Misspecifications in Meta-Analysis

Tinbergen Institute Discussion Paper No. TI 2005-029/3

23 Pages Posted: 12 Apr 2005

See all articles by Mark J. Koetse

Mark J. Koetse

Free University of Amsterdam - Department of Spatial Economics

Raymond J.G.M. Florax

Purdue University; VU University Amsterdam - Department of Spatial Economics; Tinbergen Institute

Henri L. F. de Groot

VU University Amsterdam - Department of Spatial Economics; Tinbergen Institute

Date Written: March 2005

Abstract

Misspecifications and differences in operational definitions of elasticities in primary studies carry over to meta-analysis results. We show that the current practice of accounting for such primary study aberrations in a meta-analysis by means of dummy variables goes a long way in mitigating their negative effects on the bias and mean squared error of the estimator, and the size and the power of the statistical tests on the meta-estimate. Controlling for omitted variable bias has a bigger beneficial impact on the meta-analysis results than the concomitant procedure for point versus double-log elasticities. However, the impact of mixing different types of elasticities on the results of a meta-analysis is smaller in any case.

Keywords: Meta-analysis, Monte Carlo simulation, Omitted variable bias, Elasticities, Model Misspecification

JEL Classification: C12, C15, C40

Suggested Citation

Koetse, Mark J. and Florax, Raymond J.G.M. and de Groot, Henri L.F., Correcting for Primary Study Misspecifications in Meta-Analysis (March 2005). Tinbergen Institute Discussion Paper No. TI 2005-029/3. Available at SSRN: https://ssrn.com/abstract=687742 or http://dx.doi.org/10.2139/ssrn.687742

Mark J. Koetse (Contact Author)

Free University of Amsterdam - Department of Spatial Economics ( email )

De Boelelaan 1105
Amsterdam, 1081 HV
Netherlands
+31(0)20 598 6168 (Phone)
+31(0)20 598 6004 (Fax)

Raymond J.G.M. Florax

Purdue University ( email )

West Lafayette, IN 47907-1145
United States
(765) 494-4300 (Phone)
(765) 494-9176 (Fax)

HOME PAGE: http://web.ics.purdue.edu/~rflorax/

VU University Amsterdam - Department of Spatial Economics ( email )

De Boelelaan 1105
1081HV Amsterdam
Netherlands
+31 20 444 6092 (Phone)
+31 20 444 6004 (Fax)

Tinbergen Institute

Burg. Oudlaan 50
Rotterdam, 3062 PA
Netherlands

Henri L.F. De Groot

VU University Amsterdam - Department of Spatial Economics ( email )

De Boelelaan 1105
Amsterdam, 1081 HV
Netherlands
+31 20 598 6168 (Phone)
+31 20 598 6004 (Fax)

Tinbergen Institute

Gustav Mahlerplein 17
Amsterdam, 1082 MS
Netherlands

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