Migeru has some interesting ideas about analogies between thermodynamics and economics and fluid dynamics and economics.

But all of these areas are a bit far afield from my own area of expertise.

The dynamics of nonlinear differential equations might also be worth a shot (i.e. classical chaos theory - but if you google nonlinear differential equations, you'll get less pseudophilosophical crap than if you google chaos theory).

- Jake

Friends come and go. Enemies accumulate.