The Capital Asset Pricing Model In The 21st Century

The Capital Asset Pricing Model (CAPM) and the mean-variance (M-V) rule, which are based on classic expected utility theory, have been heavily criticized theoretically and empirically. The advent of behavioral economics, prospect theory and other psychology-minded approaches in finance challenges the rational investor model from which CAPM and M-V derive. Haim Levy argues that the tension between the classic financial models and behavioral economics approaches is more apparent than real. This book aims to relax the tension between the two paradigms. Specifically, Professor Levy shows that although behavioral economics contradicts aspects of expected utility theory, CAPM and M-V are intact in both expected utility theory and cumulative prospect theory frameworks. There is furthermore no evidence to reject CAPM empirically when ex-ante parameters are employed. Professionals may thus comfortably teach and use CAPM and behavioral economics or cumulative prospect theory as coexisting paradigms.

"Project Theory and the classical models in finance (e.g., the CAPM) seemingly contradict each other, creating a teachin and a research dilemma to professors in finanace and econommics, This tension is particualrly strong for professors who teach both the CAPM and behavioral finance. This book bridges between Prospect Theory and the Classical Models in finance showing that there is no contradictions between them"--

This book proposes a new capital asset pricing model dubbed the ZCAPM that outperforms other popular models in empirical tests using US stock returns. The ZCAPM is derived from Fischer Black’s well-known zero-beta CAPM, itself a more general form of the famous capital asset pricing model (CAPM) by 1990 Nobel Laureate William Sharpe and others. It is widely accepted that the CAPM has failed in its theoretical relation between market beta risk and average stock returns, as numerous studies have shown that it does not work in the real world with empirical stock return data. The upshot of the CAPM’s failure is that many new factors have been proposed by researchers. However, the number of factors proposed by authors has steadily increased into the hundreds over the past three decades. This new ZCAPM is a path-breaking asset pricing model that is shown to outperform popular models currently in practice in finance across different test assets and time periods. Since asset pricing is central to the field of finance, it can be broadly employed across many areas, including investment analysis, cost of equity analyses, valuation, corporate decision making, pension portfolio management, etc. The ZCAPM represents a revolution in finance that proves the CAPM as conceived by Sharpe and others is alive and well in a new form, and will certainly be of interest to academics, researchers, students, and professionals of finance, investing, and economics.

Interest in economics is at an all-time high. Among the challenges facing the nation is an economy with rapidly rising unemployment, failures of major businesses and industries, and continued dependence on oil with its wildly fluctuating price. Americans are debating the proper role of the government in company bailouts, the effectiveness of tax cuts versus increased government spending to stimulate the economy, and potential effects of deflation. Economists have dealt with such questions for generations, but they have taken on new meaning and significance. Tackling these questions and encompassing analysis of traditional economic theory and topics as well as those that economists have only more recently addressed, 21st Century Economics: A Reference Handbook is intended to meet the needs of several types of readers. Undergraduate students preparing for exams will find summaries of theory and models in key areas of micro and macroeconomics. Readers interested in learning about economic analysis of an issue as well students embarking on research projects will find introductions to relevant theory and empirical evidence. And economists seeking to learn about extensions of analysis into new areas or about new approaches will benefit from chapters that introduce cutting-edge topics. To make the book accessible to undergraduate students, models have been presented only in graphical format (minimal calculus) and empirical evidence has been summarized in ways that do not require much background in statistics or econometrics. It is thereby hoped that chapters will provide both crucial information and inspiration in a non-threatening, highly readable format.

Make smart investment decisions to build a strong portfolio This book is a practical and accessible guide to understanding and implementing the capital asset pricing model, providing you with the essential information and saving time. In 50 minutes you will be able to: • Understand the uses of the capital asset pricing model and how you can apply it to your own portfolio • Analyze the components of your current portfolio and its level of efficiency to assess which assets you should retain and which you should remove • Calculate the level of risk involved in new investments so that you make the right decisions and build the most efficient portfolio possible ABOUT 50MINUTES.COM | Management & Marketing 50MINUTES.COM provides the tools to quickly understand the main theories and concepts that shape the economic world of today. Our publications are easy to use and they will save you time. They provide elements of theory and case studies, making them excellent guides to understand key concepts in just a few minutes. In fact, they are the starting point to take action and push your business to the next level.

This book rehabilitates beta as a definition of systemic risk by using particle physics to evaluate discrete components of financial risk. Much of the frustration with beta stems from the failure to disaggregate its discrete components; conventional beta is often treated as if it were "atomic" in the original Greek sense: uncut and indivisible. By analogy to the Standard Model of particle physics theory's three generations of matter and the three-way interaction of quarks, Chen divides beta as the fundamental unit of systemic financial risk into three matching pairs of "baryonic" components. The resulting econophysics of beta explains no fewer than three of the most significant anomalies and puzzles in mathematical finance. Moreover, the model's three-way analysis of systemic risk connects the mechanics of mathematical finance with phenomena usually attributed to behavioral influences on capital markets. Adding consideration of volatility and correlation, and of the distinct cash flow and discount rate components of systematic risk, harmonizes mathematical finance with labor markets, human capital, and macroeconomics.