Efficiency and Anomalies in Stock Markets


Book Description

The Efficient Market Hypothesis believes that it is impossible for an investor to outperform the market because all available information is already built into stock prices. However, some anomalies could persist in stock markets while some other anomalies could appear, disappear and re-appear again without any warning. A Special Issue on "Efficiency and Anomalies in Stock Markets" will be devoted to advancements in the theoretical development of market efficiency and anomaly in the Stock Market, as well as applications in Stock Market efficiency and anomalies.




Capital Market Anomalies: Explained by Human ?s Irrationality


Book Description

Why do small caps achieve higher risk-adjusted yields than large caps? Why do stock prices increase or decrease upon an index entry respectively deletion? Why does January records higher yields than the remaining months of the year? These as well as other observed capital market anomalies or phenomena could be insufficiently explained by the classical capital market theory, which proceeds on the assumptions that all correspondent information are reflected in the stock prices, all negative effects are directly balanced on the market level and that efficiency of arbitrage principle exists as well as that all market participants act rationally (i.e. optimizing their benefits in the sense of the homo economicus). This motivated some economists and psychologists to include behavioural scientific findings in their research of the influences on the formation of prices on the capital market. In the 1980s the theory of Behavioural Finance was developed, which challenges the homo economicus. Researchers came to the conclusion that humans are not only acting rational, but that they are also influenced by emotions, knowledge and experiences. This new scientific behavioural oriented theory, which is today a separate branch of research, contradicts the classical capital market theory and supplies explanations for the observed phenomena on the capital market. The aim of this book is to demonstrate how human behaviour influences the development on the capital market and how Behavioural Finance serves as an explanation for the empirically observed capital market anomalies. This book begins with the introduction of the theoretical basis of Behavioural Finance and its emergence; tasks as well as aims will be explained in detail. Subsequently, human's heuristics as well as anomalies and irrationalities in their decision making process will be demonstrated. In the third chapter, the capital market anomalies or phenomena as well as the irrational and behavioural reasons for their existen




The Handbook of Equity Market Anomalies


Book Description

Investment pioneer Len Zacks presents the latest academic research on how to beat the market using equity anomalies The Handbook of Equity Market Anomalies organizes and summarizes research carried out by hundreds of finance and accounting professors over the last twenty years to identify and measure equity market inefficiencies and provides self-directed individual investors with a framework for incorporating the results of this research into their own investment processes. Edited by Len Zacks, CEO of Zacks Investment Research, and written by leading professors who have performed groundbreaking research on specific anomalies, this book succinctly summarizes the most important anomalies that savvy investors have used for decades to beat the market. Some of the anomalies addressed include the accrual anomaly, net stock anomalies, fundamental anomalies, estimate revisions, changes in and levels of broker recommendations, earnings-per-share surprises, insider trading, price momentum and technical analysis, value and size anomalies, and several seasonal anomalies. This reliable resource also provides insights on how to best use the various anomalies in both market neutral and in long investor portfolios. A treasure trove of investment research and wisdom, the book will save you literally thousands of hours by distilling the essence of twenty years of academic research into eleven clear chapters and providing the framework and conviction to develop market-beating strategies. Strips the academic jargon from the research and highlights the actual returns generated by the anomalies, and documented in the academic literature Provides a theoretical framework within which to understand the concepts of risk adjusted returns and market inefficiencies Anomalies are selected by Len Zacks, a pioneer in the field of investing As the founder of Zacks Investment Research, Len Zacks pioneered the concept of the earnings-per-share surprise in 1982 and developed the Zacks Rank, one of the first anomaly-based stock selection tools. Today, his firm manages U.S. equities for individual and institutional investors and provides investment software and investment data to all types of investors. Now, with his new book, he shows you what it takes to build a quant process to outperform an index based on academically documented market inefficiencies and anomalies.




Adaptive Markets


Book Description

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.




Inefficient Markets


Book Description

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.




Stock Market Anomalies


Book Description




Behavioral Finance and Capital Markets


Book Description

Behavioral Finance helps investors understand unusual asset prices and empirical observations originating out of capital markets. At its core, this field of study aids investors in navigating complex psychological trappings in market behavior and making smarter investment decisions. Behavioral Finance and Capital Markets reveals the main foundations underpinning neoclassical capital market and asset pricing theory, as filtered through the lens of behavioral finance. Szyszka presents and classifies many of the dynamic arguments being made in the current literature on the topic through the use of a new, ground-breaking methodology termed: the General Behavioral Asset Pricing Model (GBM). GBM describes how asset prices are influenced by various behavioral heuristics and how these prices deviate from fundamental values due to irrational behavior on the part of investors. The connection between psychological factors responsible for irrational behavior and market pricing anomalies is featured extensively throughout the text. Alternative explanations for various theoretical and empirical market puzzles - such as the 2008 U.S. financial crisis - are also discussed in a convincing and interesting manner. The book also provides interesting insights into behavioral aspects of corporate finance.




Beyond the Random Walk


Book Description

In an efficient market, all stocks should be valued at a price that is consistent with available information. But as financial expert Singal points out, there are circumstances under which certain stocks sell at a price higher or lower than the right price. Here he discusses ten such anomalous prices and shows how investors might--or might not--be able to exploit these situations for profit.




Neuroeconomics and the Decision-Making Process


Book Description

Neuroeconomics has emerged as a field of study with the goal of understanding the human decision-making process and the mental consideration of multiple outcomes based on a selected action. In particular, neuroeconomics emphasizes how economic conditions can impact and influence the decision-making process and alternately, how human actions have the power to impact economic conditions. Neuroeconomics and the Decision-Making Process presents the latest research on the relationship between neuroscience, economics, and human decision-making, including theoretical foundations, real-world applications, and models for implementation. Taking a cross-disciplinary approach to neuroeconomic theory and study, this publication is an essential reference source for economists, psychologists, business professionals, and graduate-level students across disciplines.




A Monthly Effect in Stock Returns


Book Description

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