The WTO Trade Effect

Rose (2004) showed that the WTO or its predecessor, the GATT, did not promote trade, based on conventional econometric analysis of gravity-type equations of trade. We argue that conclusions regarding the GATT/WTO trade effect based on gravity-type equations are arbitrary and subject to parametric mi...

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Bibliographic Details
Main Authors: CHANG, Pao Li, LEE, Myoung-Jae
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 2007
Subjects:
GSP
Online Access:https://ink.library.smu.edu.sg/soe_research/1075
https://ink.library.smu.edu.sg/context/soe_research/article/2074/viewcontent/WTOeffect.pdf
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Institution: Singapore Management University
Language: English
Description
Summary:Rose (2004) showed that the WTO or its predecessor, the GATT, did not promote trade, based on conventional econometric analysis of gravity-type equations of trade. We argue that conclusions regarding the GATT/WTO trade effect based on gravity-type equations are arbitrary and subject to parametric misspecifications. We propose using nonparametric matching methods to estimate the 'treatment effect' of GATT/WTO membership, and permutation-based inferential procedures for assessing statistical significance of the estimated effects. A sensitivity analysis following Rosenbaum (2002) is then used to evaluate the sensitivity of our estimation results to potential selection biases. Contrary to Rose (2004), we find the effect of GATT/WTO membership economically and statistically significant, and far greater than that of the Generalized System of Preferences (GSP).