Surprise ?? As recent economist survey points out, the emerging world now accounts for over half of global economic output, measured in purchasing-power parity (which allows for lower prices in poorer countries). Many economists prefer to measure GDP using current exchange rates (which put the emerging world's proportion closer to 30%). But even on this basis the newcomers accounted for well over half of the growth in global output last year. And a barrage of statistics shows economic power shifting away from the “developed” economies (basically North America, western Europe, Japan and Australasia) towards emerging ones, especially in Asia. Developing countries chew up over half of the world's energy and hold most of its foreign-exchange reserves. Their share of exports has jumped from 20% in 1970 to 43% today. And, although Africa still lags behind, the growth is fairly broadly spread: they may be the most talked about, yet Brazil, Russia, India and China account for only two-fifths of emerging-world output....