Perfect order is boring, perfect randomness is boring, but complex systems are interesting. - David Orrell

It has become increasingly evident, at least among those who aren't currency traders or true believers in the optimality of free markets, that it would be nice if this system could calm down a touch. One option is the Tobin tax, which would impose a tax of around 0.1 percent on currency trades, and act as a kind of damper on speculation.

Not only is Homo economicus self-centered, he is a murdering psychopath. However, as with much of neoclassical economic thought, there is an element of circularity here.

The neoclassical dogma of diminishing returns is completely wrong - success begets success and wealth begets wealth.