Monday, March 9, 2009

Physicists: They Tried to Outsmart Wall Street

Emanuel Derman expected to feel a letdown when he left particle physics for a job on Wall Street in 1985. After all, for almost 20 years, as a graduate student at Columbia and a postdoctoral fellow at institutions like Oxford and the University of Colorado, he had been a spear carrier in the quest to unify the forces of nature and establish the elusive and Einsteinian “theory of everything,” hobnobbing with Nobel laureates and other distinguished thinkers. How could managing money compare?

Dr. Derman, who likes to say it is the models that are simple, not the world, maintains they can be a useful guide to thinking as long as you do not confuse them with real science — an approach Dr. Taleb scorned as “schizophrenic.”
 
Dr. Derman said, “Nobody ever took these models as playing chess with God.”
 
Do some people take the models too seriously? “Not the smart people,” he said.

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