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Trade and African Regional Agreements: a spatial econometric approach

Author

Listed:
  • Aligui TIENTAO

    (LEG/AMIE - CNRS FRE 3496 - Université de Bourgogne)

  • Diègo LEGROS

    (LEG/AMIE - CNRS FRE 3496 - Université de Bourgogne)

  • Wilfried KOCH

    (Université du Québec à Montréal-CIRPEE)

Abstract

(VF)L’objet de cette étude est d'évaluer l'impact des blocs régionaux africains sur les flux commerciaux, tout en prenant en compte l'interdépendance spatiale entre ces flux. À cet effet, nous dérivons une équation de gravité spatiale en relâchant l'hypothèse implicite que les flux commerciaux entre deux partenaires sont indépendants de ce qui se passe dans le reste du monde. Nous estimons les effets frontières pour six blocs régionaux en Afrique (CEMAC, COMESA, CEDEAO, SADC, UEMOA et la zone FRANC). Nos résultats montrent qu’excepté la zone FRANC et la CEDEAO, tous les autres blocs ont produit des effets positifs sur les flux commerciaux. Cependant, ces effets sont faibles sauf pour l'UEMOA et la CEMAC. En outre, l'interdépendance spatiale entre les flux commerciaux s’est traduite par une relation négative comme l'implique le modèle théorique, ce qui suggère une mesure naturelle de la concurrence spatiale. (VA)The purpose of this paper is to evaluate the impact of African regional blocs on African trade flows while allowing for spatial interdependence between trade flows. To this end, we derive a spatial gravity equation by removing the implicit assumption that trade flows between two trading partners are independent of what happens in the rest of the trading world. We estimate the border effects for six Sub-Saharan regional blocs (CEMAC, COMESA, ECOWAS, SADC, WAEMU and FRANC). We find that regional blocs have positive effects on African trade flows, although these effects are small except for WAEMU and CEMAC. We do not find any significant effect on trade flows for the FRANC and ECOWAS zones. In addition, the spatial interdependence between trade flows is reflected in a negative relationship as implied by the theoretical model, suggesting a natural measure of spatial competition.

Suggested Citation

  • Aligui TIENTAO & Diègo LEGROS & Wilfried KOCH, 2012. "Trade and African Regional Agreements: a spatial econometric approach," LEG - Document de travail - Economie 2012-04, LEG, Laboratoire d'Economie et de Gestion, CNRS, Université de Bourgogne.
  • Handle: RePEc:lat:legeco:e2012-04
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    More about this item

    Keywords

    (VF)Effets frontières ; Blocs régionaux ; Autocorrélation spatiale ; Afrique Sub-Saharienne. (VA)Border effects; Regional blocs; Spatial Autocorrelation; Sub-Saharan Africa.;
    All these keywords.

    JEL classification:

    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • R12 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Size and Spatial Distributions of Regional Economic Activity; Interregional Trade (economic geography)
    • O55 - Economic Development, Innovation, Technological Change, and Growth - - Economywide Country Studies - - - Africa

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