AGAINST THE GODS by Peter L. Bernstein

AGAINST THE GODS

The Remarkable Story of Risk

KIRKUS REVIEW

 A history of probability from an economist and author of a history of Wall Street (Capital Ideas, 1991). Modern risk theory dates from a little geometric model invented in 1654 called Pascal's Triangle, which Blaise Pascal used to address a perennial intellectual question: If two participants quit a game of chance before finishing, how is the pot divided? Pascal's Triangle answered the question by showing the proportions of probable outcomes at any given stage of a game. Games dominated theories of risk for a long while, until the English began analyzing death records, resulting in the first actuarial tables, and the Dutch did the same with the successes and failures of merchant shipping. The bell curve and the concept of standard deviations arrived, after much tedious experimentation, in the 19th century--and are very much with us still, in political polling, for instance, and in the analysis of stocks. These classical concepts retain their value, but the irrational, catastrophic events of the 20th century led economists such as John Maynard Keynes to discard the past as a reliable gauge for the future and embrace uncertainty as the only real operating principle. Chaos theorists are presently engaged in an attempt to computerize the minutiae of reality, arguing the need for ongoing, ever-changing models of the future, and rejecting the mean of the bell curve, because the mean changes even as it is identified. There is no norm, in other words, but Bernstein argues that this is cause for hope, rather than despair. He concurs with Keynes that probabilities exist; we simply do not know enough to find them. Therefore, an informed decision matters all the more: A calculated risk is superior to a fool's wager. A dense but compelling model of how the world works.

Pub Date: Oct. 18th, 1996
ISBN: 0-471-12104-5
Page count: 352pp
Publisher: Wiley
Review Posted Online:
Kirkus Reviews Issue: Sept. 1st, 1996




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