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Sensitivity of international blocs´ trade effect to alternative specifications of the gravity equation

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Author Info
Yener Kandogan (University of Michigan-Flint)
Abstract

There are so many versions of the gravity model in the international trade literature that their results on trade effects inevitably vary even for the same international blocs. This paper evaluates these alternative specifications, and compares the resulting trade effects. The results show that there is considerable sensitivity to the specification of the gravity model used. Therefore, it is important to use the proper specification to accurately measure the trade effects. This paper suggests that removing restrictions on the parameters of the model with the introduction of year, exporter, importer, and bilateral effects is necessary to properly specify the model. In particular, factors included in the augmented model, especially monetary and spatial variables, are significant. An analysis of the resulting model also shows that international blocs effect on trade vary across blocs by the level of integration, the degree of their implementation, and their sectoral coverage.

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File URL: http://www4.cema.edu.ar/pjae/m/154Kandogan200711
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Publisher Info
Article provided by Universidad del CEMA in its journal Journal of Applied Economics.

Volume (Year): X (2007)
Issue (Month): (November)
Pages: 337-360
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Handle: RePEc:cem:jaecon:v:10:y:2007:n:2:p:337-360

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Related research
Keywords: gravity models; trade agreements; international organizations; blocs;

Find related papers by JEL classification:
F15 - International Economics - - Trade - - - Economic Integration
C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation and Testing

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