A two-methodology comparison study of a spatial gravity model in the context of interregional trade flows

Luisa Alam᭓abater, Laura MᲱuez-Ramos, Jos頍iguel Navarro-Azor󸀍 and Celestino SuᲥz-Burguet
Authors registered in the RePEc Author Service: Laura Márquez-Ramos

Applied Economics, 2015, vol. 47, issue 14, 1481-1493

Abstract: This article argues that the introduction of spatial interactions to model the determinants of origin-destination (OD) flows can potentially result in excessive contiguity. To explain flows between OD regions, it is not only what happens in the origin and destination that is relevant, but also what happens in their neighbouring regions. However, what happens if there is a high degree of overlap between origin neighbouring areas and destination neighbouring areas? The article presents an empirical illustration to re-examine the evidence presented in previous research (Alam᭓abater et al. , 2013) and more closely analyses the territorial level, focusing on the case of interregional trade of goods at the NUTS3 level (Spanish provinces). We then use two different methodologies within the framework of a spatial gravity equation for interregional trade modelling. The findings confirm the importance of spatial dependence on trade flows and in particular that logistics decisions within a province affect shipments from contiguous provinces.

Date: 2015
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DOI: 10.1080/00036846.2014.997929

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