Krugman's economics/politics ratio rises (China Unpegs Itself):
Thursday's statement from the People's Bank of China, announcing that the yuan is no longer pegged to the dollar, was terse and uninformative - you might say inscrutable. There's a good chance that this is simply a piece of theater designed to buy a few months' respite from protectionist pressures in the U.S. Congress.
Nonetheless, it could be the start of a process that will turn the world economy upside down - or, more accurately, right side up. That is, the free ride China has been giving America, in which the world's richest economy has been getting cheap loans from a country that is dynamic but still quite poor, may be coming to an end.
It's all about which way the capital is flowing.
Capital usually flows from mature, developed economies to less-developed economies on their way up. For example, a lot of America's growth in the 19th century was financed by investors from Britain, which was already industrialized.
A decade ago, before the world financial crisis of 1997-1998, capital movements seemed to fit the historic pattern, as funds flowed from Japan and Western nations to "emerging markets" in Asia and Latin America. But these days things are running in reverse: capital is flowing out of emerging markets, especially China, and into the United States.
This uphill flow isn't the result of private-sector decisions; it's the result of official policy. To keep China's currency from rising, the Chinese government has been buying up huge quantities of dollars and investing the proceeds in U.S. bonds.
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An end to China's dollar-buying spree would lead to a sharp rise in the value of the yuan. It would probably also lead to a sharp fall in the value of the dollar relative to other major currencies, like the yen and the euro, which the Chinese haven't been buying on the same scale. This would help U.S. manufacturers by raising their competitors' costs.
But if the Chinese stopped buying all those U.S. bonds, interest rates would rise. This would be bad news for housing - maybe very bad news, if the interest rate rise burst the bubble.
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