Well, if you're impressed by credentials, Princeton's James Madison Professor of Political Economy and Professor of Economics and Public Affairs Uwe E. Reinhardt (http://wws.princeton.edu/people/display_person.xml?netid=reinhard&display=Core) says that the U.S. spends "somewhere between 25 and 30 percent [on] administration" (http://worldfocus.org/blog/2009/01/28/how-the-us-measures-up-to-canadas-health-care-system/3783/). Most of that comes from dealing with (and fighting with) your myriad insurance companies, whose primary fiduciary duty is to deny health care whenever and wherever possible (they owe it to their shareholders).