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A new, evolutionary explanation of markets and investor behavior Half of all Americans have money in the stock market, yet economists can´t agree on whether investors and markets are rational and efficient, as modern financial theory assumes, or irrational and inefficient, as behavioral economists believe--and as financial bubbles, crashes, and crises suggest. This is one of the biggest debates in economics and the value or futility of investment management and financial regulation hang on the outcome. In this groundbreaking book, Andrew Lo cuts through this debate with a new framework, the Adaptive Markets Hypothesis, in which rationality and irrationality coexist. Drawing on psychology, evolutionary biology, neuroscience, artificial intelligence, and other fields, Adaptive Markets shows that the theory of market efficiency isn´t wrong but merely incomplete. When markets are unstable, investors react instinctively, creating inefficiencies for others to exploit. Lo´s new paradigm explains how financial evolution shapes behavior and markets at the speed of thought--a fact revealed by swings between stability and crisis, profit and loss, and innovation and regulation.A fascinating intellectual journey filled with compelling stories, Adaptive Markets starts with the origins of market efficiency and its failures, turns to the foundations of investor behavior, and concludes with practical implications--incl...show more

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Andrew W. Lo ist Professor am MIT Sloan School of Management und Director des MIT Laboratory for Financial Engineering. Er wurde mit dem Alfred P. Sloan Foundation Fellowship Award, dem Paul A. Samuelson Award, dem Graham and Dodd Award, dem James R. Vertin Award, und dem American Association of Individual Investors Award ausgezeichnet. Er ist Chairman and Chief Investment Strategist der AlphaSimplex Group, LLC.

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