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Justin Fox (born January 28, 1964) is an American financial journalist, commentator, and writer, known as editorial director of the Harvard Business Review Group and business and economics columnist for Time magazine.
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- One recent history of economic thought (Jürg Niehans’s A History of Economic Theory) devotes twenty-four pages to Samuelson’s ideas. Adam Smith only gets thirteen. Samuelson’s work on stock markets and the random walk takes up less than two of those twenty-four pages. He was “the last generalist in economics,” as he liked to say, and for him financial market studies were just a side project that he at times seemed deeply ambivalent about. His intervention was, however, crucial to the triumph of the random walk. Here was one of the most important economists of all time, and he didn’t think the relationship between coin flips and the stock market was a dinner-speech triviality.
- Justin Fox, Myth of Rational Market (2009), Ch. 4 : A Random Walk from Paul Samuelson to Paul Samuelson
- Psychologist Philip Tetlock (following the lead of Isaiah Berlin), divided the world of political forecasters into hedgehogs and foxes.
- Justin Fox. "How to Be Bad at Forecasting," in Harvard Business Review, May 11, 2012.