. >> i won't say they are acronystic, but they are increasingly so. we live in an economy the united states of services. it's not grounded on factories making stuff. that's a huge source of political, social and economic concern. we have a set of numbers. they don't do a good job of app turing intellectual or ideal outlets. most of us didn't notice that of the bureau of economics became bigger, because they tried to factor in intellectual property. or lady gaga, and the work going in to sell. >> for all the flaws, how do they decide how much to stimulate the economy or what to pull back. >> there are two things going on. useful numbers, whether it's the u.s. government or the chinese government to under-stan what is going op for the system. there i think you can have an argument for macroeconomic policy. whereby some of the numbers are useful. if you listen, not many are listening. one of the things said was even though the federal reserve said they'd shift their policies based on the headline unemployment rate, she said that rate is less useful. it d