Barkley wrote: >>Much of this work is actually being done by physicists, now part of the so-called "econophysics" movement, although sometimes the ignorance of economics by these people can be annoying, especially when they start intoning about how they have solved all the problems of economics, when they have not read much literature and are talking about non-problems, although there seems to be less of this sort of thing going on these days.<< Replace the word "physicists" with "engineers" or "mathameticians" and you've pretty much recreated much of the history of economics over the last 150 years. Or am I wrong? Greg Ransom