According to a report by a pair of economists out of the Asian Development Bank Institute, the success of Apple’s iPhone plays a major role in contributing to the USA’s trade deficit with China. The Wall Street Journal (login required) explains that while sales of the iPhone show around a billion trade surplus with China on paper as of 2009, the actual figure is a lot less because the iPhone is only assembled in China, not designed there. While the wholesale price of an iPhone is 8.96, the value of the only truly “Chinese” part is assembly, valued at .50 per unit. But because the iPhone ships from inside China, the entire value gets added into the trade figures, thus showing the billion trade surplus. If the numbers actually accounted for the true value coming out of China, the surplus for 2009 would have been about million instead — meaning in reality there is an almost billion trade deficit just from the iPhone alone.