Forty-four African countries have signed a free-trade deal, the biggest since the World Trade Organisation was established, committing to remove tarriffs on 90 percent of goods. There are hopes that the agreement will progress to an arrangement like the EU, with the free movement of people and a single currency.
But among the countries who have not signed up are South Africa and Nigeria – the continent’s biggest economies.
Al Jazeera’s Mohammed Adow reports from the Rwandan capital Kigali.
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