>>> d_squared_2002 at yahoo.co.uk 09/08/00 02:55AM >>>
Almost interestingly, perhaps for the "econophysics" crowd, Einstein gets all the credit for this, but it was actually an economist who invented the equations. Louis Bachelier's PhD dissertation "Theorie de la Speculation" invented the Brownian motion equations to describe an early version of the Efficient Markets Hypothesis.
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Brown in motion: This would be a mechanical materialist or vulgar economic theory.