Second is the Wall Street-Washington complex, which has steered the financial system towards control by a few politically powerful Wall Street firms, notably Goldman Sachs, JPMorgan Chase, Citigroup, Morgan Stanley and a handful of other financial firms. These days, almost every US Treasury secretary - Republican or Democrat - comes from Wall Street and goes back there when his term ends. The close ties between Wall Street and Washington ''paved the way for the 2008 financial crisis and the mega-bailouts that followed, through reckless deregulation followed by an almost complete lack of oversight by government''. Third is the Big Oil-transport-military complex, which has put the US on the trajectory of heavy oil-imports dependence and a deepening military trap in the Middle East, he says. ''Since the days of John D. Rockefeller and the Standard Oil Trust a century ago, Big Oil has loomed large in American politics and foreign policy. Big Oil teamed up with the automobile industry to steer America away from mass transit and towards gas-guzzling vehicles driving on a nationally financed highway system.'' Big Oil has consistently and successfully fought the intrusion of competition from non-oil energy sources, including nuclear, wind and solar power.

It has been at the side of the Pentagon in making sure that America defends the sea-lanes to the Persian Gulf, in effect ensuring a $US100 billion-plus annual subsidy for a fuel that is otherwise dangerous for national security, Sachs says. ''And Big Oil has played a notorious role in the fight to keep climate change off the US agenda. Exxon-Mobil, Koch Industries and others in the sector have underwritten a generation of anti-scientific propaganda to confuse the American people.'' Fourth is the healthcare industry, America's largest industry, absorbing no less than 17 per cent of US gross domestic product. ''The key to understanding this sector is to note that the government partners with industry to reimburse costs with little systematic oversight and control,'' Sachs says. ''Pharmaceutical firms set sky-high prices protected by patent rights; Medicare [for the aged] and Medicaid [for the poor] and private insurers reimburse doctors and hospitals on a cost-plus basis; and the American Medical Association restricts the supply of new doctors through the control of placements at medical schools. ''The result of this pseudo-market system is sky-high costs, large profits for the private healthcare sector, and no political will to reform.''

Now do you see why the industry put so much effort into persuading America's punters that Obamacare was rank socialism? They didn't succeed in blocking it, but the compromised program doesn't do enough to stop the US being the last rich country in the world without universal healthcare. It's worth noting that, despite its front-running cost, America's healthcare system doesn't leave Americans with particularly good health - not as good as ours, for instance. This conundrum is easily explained: America has the highest-paid doctors. Sachs says the main thing to remember about the corporatocracy is that it looks after its own. ''There is absolutely no economic crisis in corporate America. ''Consider the pulse of the corporate sector as opposed to the pulse of the employees working in it: corporate profits in 2010 were at an all-time high, chief executive salaries in 2010 rebounded strongly from the financial crisis, Wall Street compensation in 2010 was at an all-time high, several Wall Street firms paid civil penalties for financial abuses, but no senior banker faced any criminal charges, and there were no adverse regulatory measures that would lead to a loss of profits in finance, health care, military supplies and energy,'' he says. The 30-year achievement of the corporatocracy has been the creation of America's rich and super-rich classes, he says. And we can now see their tools of trade.

''It began with globalisation, which pushed up capital income while pushing down wages. These changes were magnified by the tax cuts at the top, which left more take-home pay and the ability to accumulate greater wealth through higher net-of-tax returns to saving.'' Chief executives then helped themselves to their own slice of the corporate sector ownership through outlandish awards of stock options by friendly and often handpicked compensation committees, while the Securities and Exchange Commission looked the other way. It's not all that hard to do when both political parties are standing in line to do your bidding, Sachs concludes. Fortunately, things aren't nearly so bad in Australia. But it will require vigilance to stop them sliding further in that direction. Twitter: @1Ross Gittins