The Obama administration declined Thursday to cite China for manipulating its currency to gain unfair trade advantages against the United States.
But the administration did conclude that the Chinese currency is undervalued against the dollar, in a report that it is required to send Congress.
The report noted that China on June 19 announced it was introducing more flexibility into its currency system. After showing no movement against the dollar since mid-2008, the Chinese renminbi, also called the yuan, has risen about 0.8 percent against the dollar since Beijing's June announcement.
In a statement, Treasury Secretary Timothy Geithner said the administration will be watching the currency changes closely in coming months. The administration is required to issue the currency report every six months.
"What matters is how far and how fast the renminbi appreciates," Geithner said. "We will closely and regularly monitor the appreciation of the renminbi and will continue to work towards expanded U.S. export opportunities in China that support employment in the United States."
Lawmakers on Capitol Hill criticized the findings. Some vowed to push legislation to impose stiff penalties on Chinese imports if China does not move more quickly to revalue its currency.
Sen. Charles Schumer, D-N.Y., one of China's leading critics in Congress, said he plans to seek a vote on his legislation at the earliest opportunity.
"This report is as disappointing as it is unsurprising. It's clear that it will take an act of Congress to do the obvious and call China out for its currency manipulation," Schumer said in a statement.
Senate Finance Committee Chairman Max Baucus, D-Mont., who is not signed on to Schumer's legislation, said the administration must be aggressive in pushing China on the currency issue.
"A few weeks ago, China took a small step . . . but small steps are not enough," Baucus said in a statement. "China must take significant steps to appreciate its currency and I expect those steps to happen soon."
House Ways and Means Committee Chairman Sander Levin said that the slight appreciation of the yuan since June 19 was clearly not enough. He said unless Beijing allows its currency to appreciate much further, the administration should consider bringing a trade case against China before the World Trade Organization, the Geneva-based organization that oversees global trade rules.
"There is no real question that China's exchange rate policy is unfair, contributes to global trade imbalances and costs the United States jobs and economic growth, particularly in the manufacturing sector," Levin, D-Mich., said in a statement.
American manufacturers say the Chinese currency is undervalued by as much as 40 percent. They contend that this undervaluation is a key reason for America's huge trade deficit with China, the largest with any country. It is also a factor in the loss of millions of American manufacturing jobs over the past decade, they say.
A stronger Chinese currency would make U.S. goods cheaper in China and would make Chinese goods more expensive for American consumers. That would boost U.S. exports to China and help dampen demand among American consumers for Chinese products.
However, many private economists argue that there are a variety of reasons for America's huge trade deficit with China. A change in the currency values would have only limited impact on the deficit, they say.
The new currency report had been scheduled for release in mid-April. But Geithner delayed its release until after last month's Group of 20 conference of major economic powers.
Geithner's action was widely seen as an effort to give China more time to resume allowing its currency to rise in value against the dollar without seeming to bow to outside pressure.
President Barack Obama, who met with Chinese President Hu Jintao in Toronto, later told reporters that the "proof of the pudding is going to be in the eating" on China's new pledge of a more flexible currency.
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