OOooooooh, you want to take a "systems theory" approach, then? Okay, how about this: let's stop burdening our economy with legislation that makes it harder for industries to grow. Remove the environmental legislation that makes it hard to drill for oil off the U.S. coastlines, do away with a lot of the anti-nuke restrictions that make building nuclear power plants so we can get new plants using new technology online as soon as possible, seriously reexamine ANY legislation that provides a barrier to entry for startups.
A pesky, little one that came up two years ago was the "Unlawful Internet Gambling Enforcement Act" that basically shut down any chance a U.S. citizen had for enjoying a little gambling online in the comfort of their own home. This didn't just turn people who liked to play poker in their jammies into criminals, it also impacted such unrelated places as "Second Life", a virtual reality world that had a small, but not insignificant industry that built and operated virtual casinos. Overnight (literally), Second Life went from a free, open society, to one where every casino was erased from existence ... impacting Second Life citizens from all over the planet (only about 20% of SL citizens come from the U.S.), and leaving many in the virtual community to wonder, "what's next?" Some other countries objected and filed grievances with the WTO, but that ultimately amounted to nothing. This is exactly the kind of trivial nonsense the government shouldn't have anything to do with, and while it's a tiny, almost insignificant example, it's typical of the functioning of the U.S. government for the last thirty years. That kind of tiny crap piles up to something huge over time.
Obviously, I'm focusing a lot on the U.S. government here, but I think a careful, guided relaxation of a lot of the regulations that hamper the U.S. economy will have a strong benefit for every other economy on the planet.