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Metulini, Rodolfo
Year of Publication: 
Series/Report no.: 
53rd Congress of the European Regional Science Association: "Regional Integration: Europe, the Mediterranean and the World Economy", 27-31 August 2013, Palermo, Italy
European Regional Science Association (ERSA), Louvain-la-Neuve
The Gravity Model is the workhorse for empirical studies in International Economies and it is commonly used in explaining the trade flow between countries. Recently, several studies have showed the importance of taking into account the spatial effect. The standard procedure until now was to account the transport cost using geographical distance as a proxy, and the spatial effect trough a weighted matrix constructed on inverse distance. Two issues follow from this standard procedure: the first regards the biasness of the distance if used as a proxy of the transport costs, the second is related to the collinearity emerging if we use distance twice. So, several attempt were made in the recent literature having the scope of remove the distance. We propose a theoretically consistent procedure based on Anderson, Van Wincoop derivation model, and some ad-hoc tests, relating to this attempt. The empirical results based on a 22-years panel of OECD countries are conforting, and they allow us to estimate the model without the distance, if properly replaced by a set of fixed effects.
Spatial Econometrics
Gravity Model
International trade
trade cost
multilateral resistance terms
fixed effects
Document Type: 
Conference Paper

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