Robert rubin was Bill Clinton's treasury secretary. He has worked at the top of Goldman Sachs and Citigroup. But he made arguably the single most influential decision of his long career in 1983, when as head of risk arbitrage at Goldman he went to the mit Sloan School of Management in Cambridge, Massachusetts, to hire an economist called Fischer Black.rnA decade earlier Myron Scholes, Robert Merton and Black had explained how to use share prices to calculate the value of derivatives. The Black-Scholes options-pricing model was more than a piece of geeky mathematics. It was a manifesto, part of a revolution that put an end to the anti-intellectualism of American finance and transformed financial markets from bull rings into today's quantitative powerhouses.
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