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中国的美元问题

肯尼思 罗格夫

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2009-10-02

剑桥——

中国要到何时才能意识到不能永远增加美元的外汇储备?。目前,中国的美元储备是2万亿。中国是否想要在未来5到10年之内把美元的储备增加到4万亿?随着美国面临着金融救助带来的长期负面效应,以及不断增加的养老金的负担,中国是否想要重复20世纪70年代欧洲人的老路么?

在20世纪的50至60年代之间,为了盯住美国的汇率,欧洲人购买了数量巨大的美国国债,就像今天中国政府所做的那样。不幸的是,在随后的70年代,随着美国越战的巨额支出以及当时疯涨的油价,通货膨胀激增,于是,欧洲人所持有的美元的购买力迅速缩水。

或许中国人不用为此担忧。毕竟,在匹斯堡的20国峰会上的世界领袖们刚刚承诺,不会再让此类的事件发生。如果要真的防止它发生,首先要解决全球贸易的不平衡性:美国的巨额贸易赤字,以及包括中国在内的巨额贸易顺差。

目前,值得庆幸的是,各国领导人已经意识到了这个问题的严重性。包括我在内的一些经济学家都认为,美国通过国外资本的注入来维持本国的高消费是本次危机爆发的主要原因。国外大量价格低廉的资金不断地流入使得美国金融监管变得更加脆弱,金融监管的结构需要进一步地加强。

不幸的是,在他们认识到问题的之前,世界的领袖们(特别是美国)索取多于付出。在金融危机的前夜,美国对外赤字已经飞增到中国,日本,德国,俄罗斯和沙特加起来的外汇储备的70%多。就是这样,美国政府还在袒护本国的金融机构。欧洲正在忙于提高生产率和拉动内需,经济改革的步伐举步维艰,而此时的中国还在鼓励出口。

金融危机使得美国停止了借贷的脚步。如今,美国的经常账户上的赤字已经降低到了年收入的3%。相比于一年之前的7%要好的多。美国的新当选者是否会一直这样做下去么?

但美国政府对金融机构的救助费用高达国内总收入的12%之多(大约1.5万亿美元。)虽然对外国的借贷显著下降,但国内的公司和家庭的储蓄将会激增。于是,美国政府将会把目光转向私人资本,以此满足其75%的政府开支。但这又能持续多久呢?

一旦经济正常,消费和投资会好转,而此时的政府还没有及時改变政策的走向,美国对外国资本的胃口又开始变得贪婪起来。

当然,美国政府宣称将会收紧借贷。但如果要在未来的一到两年之内将经济带出衰退,美国政府要实现匹斯堡的承诺看来还很困难。

是的,美联储可能会收紧金融政策。但在目前的危机还没有化解之前,他们还没顾得上考虑下次危机。在我们最近的新书《这次不同了:800年间的金融误区》中,我和卡门·莱因哈特指出,虽然我们可以在一次经济危机中得到教训,但本次危机的后续负效应将持续相当长的时间。

面临即将到来的美元困境,中国应该真正迅速地行动起来。到目前为止,为了开拓国外市场,增加出口,实现规模效应,中国应该提升产业链。但中国政府更应该做的是拉动内需。

诚然,要想拉动内需,中国还需要加强国内的社会保障系统,进一步深化国内的资本市场。目前中国的消费只占国内总收入的35%(相比美国的70%),还有很大的提升空间。

中国领导人当然知道大量囤积美国债券是一个问题。同样的,他们也不想公开地呼吁IMF出台一种取代美元地位的国际货币。

是的,他们有权利表达担忧。美元危机不光是眼下的问题,而是将在今后的5到10年之内面临的巨大风险。中国可不想到拥有4万亿美元的时候发生这样的问题。中国是该在匹斯堡会后主动采取行动的时候了。

Kenneth Rogoff是哈佛大学的经济学与公共政策教授,曾任IMF首席经济学家。

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PADRAEG 09:17 10 Oct 09

EXCELLENT analysis !!!


tvselvakumaran 10:02 14 Oct 09

China's Dollar Opportunity

Pegging the Chinese Renminbi-Yuan to a fixed exchange-rate with respect to the United States Dollar provides by far the most promising strategy for China to achieve the status of an economically advanced nation over the course of the next 30 years. Going by the writings of economists in the Western countries, for example, Professor Martin Feldstein and Professor Kenneth Rogoff, it would appear that China's burgeoning dollar reserves, currently at $2 trillion, are a threat to the Chinese economy in the medium term (4 to 12 years). However, the smart policy-makers in China have realized that, in the medium term, their best option is, in fact, to closely peg their currency to the US dollar. This currency peg implies that the Chinese have essentially adopted the monetary policy of the United States as the de facto monetary policy for their own economy. In addition, China's huge trade surpluses with the United States, have resumed accumulating at nearly the same pace as before the economic crisis (http://www.census.gov/foreign-trade/balance/c5700.html#2009). This means that the American economy serves as the market for the prodigious amount of goods produced by the rapidly growing Chinese economy. In short, the twin policy guidelines, viz., currency peg to the dollar and the export-driven growth model, provide the most stable, steady and the shortest road-map for China to achieve its place among the wealthiest nations of the world, in the next two or three decades.

As a result of adopting the same monetary policy as the United States, the Chinese are the biggest beneficiaries of uncle Ben's largesse. Recall that the the Federal Reserve Bank of the United States has been prusuing an extremely lax monetary policy for the last 15 months or so. Since their aim is to maintain a fixed dollar-yuan exchange-rate, the Chinese policy-makers had instituted their own massive spending program commensurate in laxity with those of the Fed. Since the Chinese economy is experiencing more than 8% real growth in annual GDP, it is able to put to good use, the trillions of yuans of currency-printing that China had to do to keep up with the Fed's dollar-printing. Moreover, since the Chinese economy is growing so fast, China's GDP would more than double in the next ten years. Thus China could comfortably let its dollar reserves grow from the current $2 trillion, to $4 trillion in the next 10 years. In the final analysis what the Chinese policy-makers have done over the course of the last two decades, is simply to stich the Chinese economy and the American economy together, so that the two economies function, for a large part, as a single economic entity.

The concept of 'Chimerica' was already much in vogue by the late 90s, among businessmen, multinational corporations, and small businesses involved in imports-exports. During the financial crisis of 2008, notable historians like Professor Niall Ferguson declared the end of Chimerica, based on considerations of disparity in savings, consumer spending and military might. In fact, many famous economists have been writing about the dangers of global imbalances for several years now. However, these views suffer from a serious flaw. The flaw is that the economists who complain about global imbalances believe that the Chinese policy-makers would like to stop accumulating dollar reserves, in the short or medium term, and instead switch to a more broad-based basket of currencies. In the medium term, nothing is more beneficial to the Chinese economy than to continue accumulating dollar reserves and watch the actions of the Fed closely. It is only in the long term, when China's per-capita GDP, approach the levels of the advanced industrial countries would the Chinese policy-makers need to worry about the depreciation in value of their dollar reserves.

Perhaps economists have been misled by the fact that the Chinese policy-makers been severely critical of America's lax short-term economic policies. Basically, the reason for China's attitude is that the Chinese would like America to conduct its economic policies according to what is best for Chimerica. In the long-term, this is a really wise course of actions for both China and America. However, if the American policy-makers would not agree to it, then China still has a lot of time to move away from the dollar as its main currency of reserves before the long-term arrives. In the meantime, America is already experiencing serious losses because of following an economic policy that is not in the long-term interest of Chimerica, but that is only in the short-term interest of America alone. To wit, the money-printing that the Fed has done has gone largely to finance the rapid economic growth in the rest of the world, including China. Whereas, the American economy is still mired in anemic growth after more than 20 months into a recession. And if the "new normal" folks are to be believed, America is going to suffer anemic growth for many years to come.

Professor Rogoff cites the example of Europe in the 50s and 60s, to dissuade the Chinese from continuing to accumulate their dollar reserves. However, the example of Europe is not really appropriate for the situation that China finds itself in currently. The countries of Europe had about the same per-capita income as the United States in the 50s and the 60s. Between two wealthy nations, subtle variations in their economic fortunes could lead, over the course of a decade or two, to significant differences in their realizing their respective economic potentials. Whereas, considering the vast differences of wealth between China and America, one sees that it does not matter what crises befall America. By simply tying itself strongly to America in economic matters, China is guarateeing itself a road-map towards creating for itself the wealth of the rich nations. Once one envisions an economic entity (viz., Chimerica) that consists of the material resources of America and China put together, along with the 300 million people of America and the 1.3 billion people of China, one sees that modern economic theory suffers from serious deficiencies that cannot be dealt with by the currently fashionable Keynesian theory.

For example, Professor Krugman has recently grown fond of using the Taylor rule to demonstrate that the Fed should not raise interest rates for many months to come (http://krugman.blogs.nytimes.com/2009/10/10/the-madness-of-the-monetary-hawks-wonkish/). However, if one considers Chimerica, then the current zero percent growth rate of the $14 trillion American economy and the 8 percent growth rate of the $3.5 trillion Chinese economy average out to a 1.6 percent growth rate for the $17.5 trillion economy of Chimerica. Again, the current 9.8% unemployment rate among 300 million Americans gets significantly mitigated when one takes into account that there is less unemployment among the 1.3 billion Chinese, in view of the rapidly growing Chinese economy. So, the nominal interest rate specified by Taylor rule for Chimerica is much more than that for America. Modern economic theory is painfully ill-equipped to handle the challenges of the current economic crisis. Unfortunately, as I mentioned in my previous article, the "official consensus" shows no sign of budging from its perennial oscillation between monetarism and Keynesianism.


Neil23 10:47 16 Oct 09

You would be on solider ground if you offered any evidence that “China” (which is hardly only one thing) does not “realize that it cannot accumulate dollars forever”.


Milos 06:44 19 Oct 09

Analysis starting with the false premise.

We do not know how many $ is accumulated in China.

2 T is a level of their foreign reserves.