There is progress in emerging lands Ruchir Sharma’s “The Emerging-Market Comedown” (op-ed, Jan. 22) is a useful antidote to all the hype about emerging economies, but he is wrong to assert that incomes in poor countries aren’t gradually converging with those of rich countries. Economist Angus Maddison’s work has shown that since emerging economies gained independence, and especially after they embraced […]