If Africa, East Asia, South Asia, and Latin America each increased their share of world exports by just one per cent, the resulting gains could lift 128 million people out of poverty.
Rich countries limit and control poor countries' share of the world market by charging high taxes on imported goods. As a result, many poor countries can only afford to export raw materials, which give far lower returns than finished products.
For example, the rich world buys cheap cotton and cocoa and turns them into expensive clothes and chocolate - reaping all of the profit. At the same time, poor countries are threatened with having loans withheld unless they open their markets to rich countries' exports.
Watch the interactive diagram