Any economist will say that Americans have been living better than they should—which is by definition the case when a nation’s total consumption is greater than its total production, as America’s now is. Economists will also point out that, despite the glitter of China’s big cities and the rise of its billionaire class, China’s people have been living far worse than they could. That’s what it means when a nation consumes only half of what it produces, as China does.
Neither government likes to draw attention to this arrangement, because it has been so convenient on both sides. For China, it has helped the regime guide development in the way it would like—and keep the domestic economy’s growth rate from crossing the thin line that separates “unbelievably fast” from “uncontrollably inflationary.” For America, it has meant cheaper iPods, lower interest rates, reduced mortgage payments, a lighter tax burden. But because of political tensions in both countries, and because of the huge and growing size of the imbalance, the arrangement now shows signs of cracking apart.