The majority of the world's poor, by income poverty and multi-dimensional poverty, now live in countries officially classified by the World Bank as middle-income countries. Of course nothing happens when a country crosses a (somewhat) arbitrary threshold in per capita income but it does matter...

Africa has come a long way since the economic turmoil of the 1980s, the decade of "structural adjustment". Growth has been strong, yet poverty remains high. Underlying the shortage of good livelihoods and high social inequality is the lack of diversification in Africa's economies-in contrast to...