The WSJ reported that the Chinese yuan rose sharply against the dollar today and that this increase led to sharp rises in other Asian currencies as well. Put this one in the "who could have known?" category.
Many of the economists cited by major news outlets are undoubtedly surprised by this sequence of events. They have minimized the importance of a rise in the yuan to the U.S. trade deficit by insisting that the United States would simple turn to other producers as a source of imports.
Those who understand the economy pointed out that other Asian currencies tend to follow the yuan, so that a rise in the value of the yuan would likely also lead to a rise in the value of other currencies against the dollar. This means that the rise in the yuan is likely to reduce U.S. imports from China and other countries, thereby reducing imports and creating jobs.