Inefficient Markets

Inefficient Markets PDF

Author: Andrei Shleifer

Publisher: OUP Oxford

Published: 2000-03-09

Total Pages: 225

ISBN-13: 0191606898

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The efficient markets hypothesis has been the central proposition in finance for nearly thirty years. It states that securities prices in financial markets must equal fundamental values, either because all investors are rational or because arbitrage eliminates pricing anomalies. This book describes an alternative approach to the study of financial markets: behavioral finance. This approach starts with an observation that the assumptions of investor rationality and perfect arbitrage are overwhelmingly contradicted by both psychological and institutional evidence. In actual financial markets, less than fully rational investors trade against arbitrageurs whose resources are limited by risk aversion, short horizons, and agency problems. The book presents and empirically evaluates models of such inefficient markets. Behavioral finance models both explain the available financial data better than does the efficient markets hypothesis and generate new empirical predictions. These models can account for such anomalies as the superior performance of value stocks, the closed end fund puzzle, the high returns on stocks included in market indices, the persistence of stock price bubbles, and even the collapse of several well-known hedge funds in 1998. By summarizing and expanding the research in behavioral finance, the book builds a new theoretical and empirical foundation for the economic analysis of real-world markets.

Efficiently Inefficient

Efficiently Inefficient PDF

Author: Lasse Heje Pedersen

Publisher: Princeton University Press

Published: 2019-09-17

Total Pages: 368

ISBN-13: 0691196095

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Efficiently Inefficient describes the key trading strategies used by hedge funds and demystifies the secret world of active investing. Leading financial economist Lasse Heje Pedersen combines the latest research with real-world examples and interviews with top hedge fund managers to show how certain trading strategies make money--and why they sometimes don't. Pedersen views markets as neither perfectly efficient nor completely inefficient. Rather, they are inefficient enough that money managers can be compensated for their costs through the profits of their trading strategies and efficient enough that the profits after costs do not encourage additional active investing. Understanding how to trade in this efficiently inefficient market provides a new, engaging way to learn finance. Pedersen analyzes how the market price of stocks and bonds can differ from the model price, leading to new perspectives on the relationship between trading results and finance theory. He explores several different areas in depth--fundamental tools for investment management, equity strategies, macro strategies, and arbitrage strategies--and he looks at such diverse topics as portfolio choice, risk management, equity valuation, and yield curve logic. The book's strategies are illuminated further by interviews with leading hedge fund managers: Lee Ainslie, Cliff Asness, Jim Chanos, Ken Griffin, David Harding, John Paulson, Myron Scholes, and George Soros.

A Crisis of Beliefs

A Crisis of Beliefs PDF

Author: Nicola Gennaioli

Publisher: Princeton University Press

Published: 2018-09-11

Total Pages: 264

ISBN-13: 0691182507

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How investor expectations move markets and the economy The collapse of Lehman Brothers in September 2008 caught markets and regulators by surprise. Although the government rushed to rescue other financial institutions from a similar fate after Lehman, it could not prevent the deepest recession in postwar history. A Crisis of Beliefs makes us rethink the financial crisis and the nature of economic risk. In this authoritative and comprehensive book, two of today’s most insightful economists reveal how our beliefs shape financial markets, lead to expansions of credit and leverage, and expose the economy to major risks. Nicola Gennaioli and Andrei Shleifer carefully walk readers through the unraveling of Lehman Brothers and the ensuing meltdown of the US financial system, and then present new evidence to illustrate the destabilizing role played by the beliefs of home buyers, investors, and regulators. Using the latest research in psychology and behavioral economics, they present a new theory of belief formation that explains why the financial crisis came as such a shock to so many people—and how financial and economic instability persist. A must-read for anyone seeking insights into financial markets, A Crisis of Beliefs shows how even the smartest market participants and regulators did not fully appreciate the extent of economic risk, and offers a new framework for understanding today’s unpredictable financial waters.

Adaptive Markets

Adaptive Markets PDF

Author: Andrew W. Lo

Publisher: Princeton University Press

Published: 2019-05-14

Total Pages: 504

ISBN-13: 069119680X

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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. The debate is one of the biggest in economics, and the value or futility of investment management and financial regulation hangs on the answer. In this groundbreaking book, Andrew Lo transforms the debate with a powerful new framework in which rationality and irrationality coexist—the Adaptive Markets Hypothesis. Drawing on psychology, evolutionary biology, neuroscience, artificial intelligence, and other fields, Adaptive Markets shows that the theory of market efficiency is 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. An ambitious new answer to fundamental questions about economics and investing, Adaptive Markets is essential reading for anyone who wants to understand how markets really work.

Advances in Behavioral Finance

Advances in Behavioral Finance PDF

Author: Richard H. Thaler

Publisher: Russell Sage Foundation

Published: 1993-08-19

Total Pages: 628

ISBN-13: 9780871548443

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Modern financial markets offer the real world's best approximation to the idealized price auction market envisioned in economic theory. Nevertheless, as the increasingly exquisite and detailed financial data demonstrate, financial markets often fail to behave as they should if trading were truly dominated by the fully rational investors that populate financial theories. These markets anomalies have spawned a new approach to finance, one which as editor Richard Thaler puts it, "entertains the possibility that some agents in the economy behave less than fully rationally some of the time." Advances in Behavioral Finance collects together twenty-one recent articles that illustrate the power of this approach. These papers demonstrate how specific departures from fully rational decision making by individual market agents can provide explanations of otherwise puzzling market phenomena. To take several examples, Werner De Bondt and Thaler find an explanation for superior price performance of firms with poor recent earnings histories in the tendencies of investors to overreact to recent information. Richard Roll traces the negative effects of corporate takeovers on the stock prices of the acquiring firms to the overconfidence of managers, who fail to recognize the contributions of chance to their past successes. Andrei Shleifer and Robert Vishny show how the difficulty of establishing a reliable reputation for correctly assessing the value of long term capital projects can lead investment analysis, and hence corporate managers, to focus myopically on short term returns. As a testing ground for assessing the empirical accuracy of behavioral theories, the successful studies in this landmark collection reach beyond the world of finance to suggest, very powerfully, the importance of pursuing behavioral approaches to other areas of economic life. Advances in Behavioral Finance is a solid beachhead for behavioral work in the financial arena and a clear promise of wider application for behavioral economics in the future.

The Inefficient Stock Market

The Inefficient Stock Market PDF

Author: Robert A. Haugen

Publisher: Pearson

Published: 2002

Total Pages: 0

ISBN-13: 9780130323668

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Sparked with wit and humor, this clever and insightful book provides clear evidence that the stock market is inefficient. In the author's view, models based on rational economic behavior cannot explain important aspects of market behavior. The book tackles important issues in today's financial market in a highly conversational and entertaining manner that will appeal to most readers. Chapter topics include: estimating expected return with the theories of modern finance, estimating portfolio risk and expected return with ad hoc factor models, payoffs to the five families, predicting future stock returns with the expected-return factor model, super stocks and stupid stocks, the international results, the topography of the stock market, the positive payoffs to cheapness and profitability, the negative payoff to risk, and the forces behind the technical payoffs to price-history. For anyone who wants to learn more about today's financial markets.

Behavioral Finance

Behavioral Finance PDF

Author: Edwin T. Burton

Publisher: John Wiley & Sons

Published: 2013-03-20

Total Pages: 261

ISBN-13: 1118331923

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An in-depth look into the various aspects of behavioral finance Behavioral finance applies systematic analysis to ideas that have long floated around the world of trading and investing. Yet it is important to realize that we are still at a very early stage of research into this discipline and have much to learn. That is why Edwin Burton has written Behavioral Finance: Understanding the Social, Cognitive, and Economic Debates. Engaging and informative, this timely guide contains valuable insights into various issues surrounding behavioral finance. Topics addressed include noise trader theory and models, research into psychological behavior pioneered by Daniel Kahneman and Amos Tversky, and serial correlation patterns in stock price data. Along the way, Burton shares his own views on behavioral finance in order to shed some much-needed light on the subject. Discusses the Efficient Market Hypothesis (EMH) and its history, and presents the background of the emergence of behavioral finance Examines Shleifer's model of noise trading and explores other literature on the topic of noise trading Covers issues associated with anomalies and details serial correlation from the perspective of experts such as DeBondt and Thaler A companion Website contains supplementary material that allows you to learn in a hands-on fashion long after closing the book In order to achieve better investment results, we must first overcome our behavioral finance biases. This book will put you in a better position to do so.