The authors acknowledge Lisa Barker for background research and editorial assistance. The Commonwealth Trade Policy Discussion Papers series promptly documents and disseminates reviews, analytical work and think-pieces to facilitate the exchange of ideas and to stimulate debates and discussions on issues that are of interest to developing countries in general and Commonwealth members in particular. The issues considered in the papers may be evolving in nature, leading to further work and refinement at a later stage. The views expressed here are those of the author(s) and do not necessarily represent those of the Commonwealth Secretariat.
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