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It is argued in the literature that Africa is marginalised in global trade. An indicator used to back
this argument is based on data on African trade as a percentage of world trade. The indicator is
calculated for several years back and it is compared to more recent years. Using this index, it has
been found that the proportion of Africa’s exports and imports in world trade is marginal, and
the proportion has been declining over time. For example, Ng and Yeats (2000, p.10) note,