Department of Economics and Business Economics

Measuring multi-membership in economic integration and its trade-impact. A comparative study of ECOWAS and SADC

Research output: Working paperResearch

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  • wp14_06

    Submitted manuscript, 1.47 MB, PDF document

  • Sylvanus Kwaku Afesorgbor, Denmark
  • Peter A.G. van Bergeijk, International Institute of Social Studies of Erasmus University, Netherlands
One of intriguing aspects of African Regional Trade Agreements (RTAs) is the extent of multi-membership, where many Africa countries are members of more than one RTA. Using a gravity model for 25 countries and the years 1980-2006 we measure the extent of multi-membership and compare its impact in two major African Regional blocs, ECOWAS and SADC. We find that the impact of multi-membership critically depends on the characteristics of the multi-membership of regional integration initiatives. We find a positive impact if an additional membership complements the integration process of the original regional integration initiative: overlapping memberships had a much stronger and significant positive effect on bilateral trade within ECOWAS compare to an insignificant impact within SADC.
Original languageEnglish
Place of publicationAarhus
PublisherInstitut for Økonomi, Aarhus Universitet
Number of pages20
Publication statusPublished - 23 Jan 2014
SeriesEconomics Working Papers
Number2014-06

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