The Doha development round of trade talks will be judged by one simple test: does it enable people in poor countries to sell more of their goods overseas, creating more jobs and lifting their incomes?

If the answer is yes, the round will succeed in enabling tens of millions of people to lift themselves out of abject poverty over the next decade and give them and their children a chance to lead a better life – in some cases, it will be the difference between a healthy life or an early death from a preventable disease.