The Economic Policy Institute says 3.2 million jobs left the US for China between 2001 and 2013. The lead author, Robert Scott, is working on follow up research, and he's certain the numbers have only grown, with manufacturing and construction hardest hit. "Those are the two sectors that pay really well for those kinds of workers. The jobs that we have gained have been in services, such as retail trade, restaurants and home health care, where wages are much lower - on average about 30% lower in total compensation. So what's happening is we're trading in good jobs for bad," Mr Scott said. Read more