This study also confirms our earlier finding that trade statistics can mislead as much as inform. Earlier we found that for every $299 iPod sold in the U.S., the U.S. trade deficit with China increased by about $150. For the iPhone and the iPad, the increase is about $229 and $275 respectively. Yet the value captured from these products through assembly in China is around $10. Statistical agencies are developing tools to gain a more accurate breakdown of the origins of traded goods by value added, which will be attributed based on the location of processing, not on the location of ownership. This will eventually provide a clearer picture of who our trading partners really are, but, while this lengthy process unfolds, countries will still be arguing based on misleading data.

Those who decry the decline of U.S. manufacturing too often point at the offshoring of assembly for electronics goods like the iPhone. Our analysis here and elsewhere makes clear that there is simply little value in electronics assembly. The gradual concentration of electronics manufacturing in Asia over the past 30 years cannot be reversed in the short- to medium-term without undermining the relatively free flow of goods, capital, and people that provides the basis for the global economy. And even if high-volume assembly expands in North America, this will likely take place in Mexico where there is already a relatively low-cost electronics assembly infrastructure.

An interesting piece in AEI about how shifting assembly jobs back to the U.S. might not be the economic boost it's often made out to be.

It’s an important distinction that Apple products (and other electronic goods) are really only “Assembled in China,” and not actually “Made in China.” The value of the final assembly in China is pretty small compared to the value added in the U.S., and yet China gets credit for the majority of the value according to the way trade statistics are calculated.