At the same time, rapidly growing middle classes across the developing world would constitute a new source of demand. With their share of global GDP increasing, developing countries would sustain relative demand for commodities, thereby preventing prices from reverting to the low levels that prevailed in the 1980’s and 1990’s.
与此同时，在发展中世界快速崛起的中产阶级将形成新的需求源。随着它们的全球全球GDP份额的升高，发展中国家将保持对商品的上对需求，从而阻止价格跌回20世纪八九十年代的低位。