If current trends continue, China might swing to a trade deficit in the not-too-distant future. Given that China has enjoyed more than a decade of strong exports, this may sound a bit far-fetched. But even if it happens, this would not necessarily be something for the world to worry about.

Some economists have recently sounded alarm bells about the possibility of a Chinese trade deficit. They argue that if the Chinese current account surplus shrinks, it would leave Beijing with less spare cash to buy U.S. Treasury bonds. Then who would fund the U.S. budget deficit -- and, by implication, U.S. consumers?