The Hour Between Dog and Wolf
Risk Taking, Gut Feelings and the Biology of Boom and Bust
A successful Wall Street trader turned Cambridge neuroscientist reveals the biology of boom and bust and how risk taking transforms our body chemistry, driving us to extremes of euphoria and risky behavior or stress and depression
The laws of financial boom and bust, it turns out, have more than a little to do with male hormones. In a series of groundbreaking experiments, Dr. John Coates identified a feedback loop between testosterone and success that dramatically lowers the fear of risk in men, especially younger men—significantly, the fear of risk is not reduced in women. Similarly, intense failure leads to a rise in levels of cortisol, the antitestosterone hormone that lowers the appetite for risk across an entire spectrum of decisions.
Coates had set out to prove what was already a strong intuition from his previous life: Before he became a world-class neuroscientist, Coates ran a derivatives desk in New York. As a successful trader on Wall Street, "the hour between dog and wolf" was the moment traders transformed-they would become revved up, exuberant risk takers, when flying high, or tentative, risk-averse creatures, when cowering from their losses. Coates understood instinctively that these dispositions were driven by body chemistry-and then he proved it.
The Hour Between Dog and Wolf expands on Coates's own research to offer lessons from the entire exploding new field-the biology of risk. Risk concentrates the mind-and the body-like nothing else, altering our physiology in ways that have profound and lasting effects. What's more, biology shifts investors' risk preferences across the business cycle and can precipitate great change in the marketplace.
Though Coates's research concentrates on traders, his conclusions shed light on all types of high-pressure decision making-from the sports field to the battlefield. The Hour Between Dog and Wolf leaves us with a powerful recognition: To handle risk in a "highly evolved" way isn't a matter of mind over body; it's a matter of mind and body working together. We all have it in us to be transformed from dog into wolf; the only question is whether we can understand the causes and the consequences.
One of Financial Times' Best Books of 2012
"A profoundly unconventional book... It's also so absorbing that I wound up reading it twice... From the first page to the last, Coates challenges deep-seated assumptions."
"If anyone is qualified to unify the seemingly disparate subjects of financial markets and neurology, it's John Coates... The Hour Between Dog and Wolf is a powerful distillation of his work—and an important step in the ongoing struggle to free economics from rational-actor theory."
—The Daily Beast
"[I]t makes intuitive sense that biological responses inform the mood of the markets. This book puts flesh on that idea."
"[A] scintillating treatise on the neurobiology of the business cycle. Coates... draws an intimate portrait of life on a trading floor…The result is a provocative and entertaining take on the irrational exuberance—and anxiety—of the modern economy."
"A provocative challenger to rational choice views of high finance, Coates makes an exceptionally clear, readable presentation that is bound to influence arguments about the regulation of Wall Street.”
"The picture of humans as rational economic machines has gone down the tubes. This book looks at the biology of why Homo economicus is a myth, and no one is better positioned to write this than Coates—he is a neuroscientist AND an economist AND an ex-Wall Street trader AND a spectacular writer. A superb book."
—Robert Sapolsky, neuroscientist, Stanford University
“If anyone is qualified to unify the seemingly disparate subjects of financial markets and neurology, it’s John Coates…The Hour Between Dog and Wolf is a powerful distillation of his work—and an important step in the ongoing struggle to free economics from rational-actor theory.”
“[I]t makes intuitive sense that biological responses inform the mood of the markets. This book puts flesh on that idea.”
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