Rational And Near Rational Bubbles Without Drift
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Rational And Near Rational Bubbles Without Drift
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Author :
language : en
Publisher:
Release Date : 2007
Rational And Near Rational Bubbles Without Drift written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
This paper derives a general class of intrinsic rational bubble solutions in a standard Lucas-type asset pricing model. I show that the rational bubble component of the price-dividend ratio can evolve as a geometric random walk without drift. The volatility of bubble innovations depends exclusively on fundamentals. Starting from an arbitrarily small positive value, the rational bubble expands and contracts over time in an irregular, wholly endogenous fashion, always returning to the vicinity of the fundamental solution. I also examine a near-rational solution in which the representative agent does not construct separate forecasts for the fundamental and bubble components of the asset price. Rather, the agent constructs only a single forecast for the total asset price that is based on a geometric random walk without drift. The agent's forecast rule is parameterized to match the moments of observable data. In equilibrium, the actual law of motion for the price-dividend ratio is stationary, highly persistent, and nonlinear. The agent's forecast errors exhibit near-zero autocorrelation at all lags, making it difficult for the agent to detect a misspecification of the forecast rule. Unlike a rational bubble, the near-rational solution allows the asset price to occasionally dip below its fundamental value. Under mild risk aversion, the near-rational solution generates pronounced low-frequency swings in the price-dividend ratio, positive skewness, excess kurtosis, and time-varying volatility--all of which are present in long-run U.S. stock market data. An independent contribution of the paper is to demonstrate an approximate analytical solution for the fundamental asset price that employs a nonlinear change of variables.
Behavioral Rationality And Heterogeneous Expectations In Complex Economic Systems
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Author : Cars Hommes
language : en
Publisher: Cambridge University Press
Release Date : 2013-01-24
Behavioral Rationality And Heterogeneous Expectations In Complex Economic Systems written by Cars Hommes and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-24 with Business & Economics categories.
Recognising that the economy is a complex system with boundedly rational interacting agents, the book presents a theory of behavioral rationality and heterogeneous expectations in complex economic systems and confronts the nonlinear dynamic models with empirical stylized facts and laboratory experiments. The complexity modeling paradigm has been strongly advocated since the late 1980s by some economists and by multidisciplinary scientists from various fields, such as physics, computer science and biology. More recently the complexity view has also drawn the attention of policy makers, who are faced with complex phenomena, irregular fluctuations and sudden, unpredictable market transitions. The complexity tools - bifurcations, chaos, multiple equilibria - discussed in this book will help students, researchers and policy makers to build more realistic behavioral models with heterogeneous expectations to describe financial market movements and macro-economic fluctuations, in order to better manage crises in a complex global economy.
Law Bubbles And Financial Regulation
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Author : Erik Gerding
language : en
Publisher: Routledge
Release Date : 2013-12-04
Law Bubbles And Financial Regulation written by Erik Gerding and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-04 with Business & Economics categories.
Financial regulation can fail when it is needed the most. The dynamics of asset price bubbles weaken financial regulation just as financial markets begin to overheat and the risk of crisis spikes. At the same time, the failure of financial regulations adds further fuel to a bubble. This book examines the interaction of bubbles and financial regulation. It explores the ways in which bubbles lead to the failure of financial regulation by outlining five dynamics, which it collectively labels the "Regulatory Instability Hypothesis." . The book concludes by outlining approaches to make financial regulation more resilient to these dynamics that undermine law.
Financial Market Bubbles And Crashes Second Edition
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Author : Harold L. Vogel
language : en
Publisher: Springer
Release Date : 2018-08-16
Financial Market Bubbles And Crashes Second Edition written by Harold L. Vogel and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-16 with Business & Economics categories.
Economists broadly define financial asset price bubbles as episodes in which prices rise with notable rapidity and depart from historically established asset valuation multiples and relationships. Financial economists have for decades attempted to study and interpret bubbles through the prisms of rational expectations, efficient markets, and equilibrium, arbitrage, and capital asset pricing models, but they have not made much if any progress toward a consistent and reliable theory that explains how and why bubbles (and crashes) evolve and can also be defined, measured, and compared. This book develops a new and different approach that is based on the central notion that bubbles and crashes reflect urgent short-side rationing, which means that, as such extreme conditions unfold, considerations of quantities owned or not owned begin to displace considerations of price.
Sunspots And Non Linear Dynamics
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Author : Kazuo Nishimura
language : en
Publisher: Springer
Release Date : 2016-12-03
Sunspots And Non Linear Dynamics written by Kazuo Nishimura and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-03 with Business & Economics categories.
This book presents the state-of-the-art in non-linear dynamics and sunspots. These two topics have been the core of an international conference on instability and public policies in a globalized world, organized at Aix-Marseille School of Economics and GREQAM in honor of Jean-Michel Grandmont. He has made significant contributions on general equilibrium theory, monetary theory, learning, aggregation, non-linear dynamics and sunspots. This book assembles contributions by Jean-Michel Grandmont's colleagues, students and friends that have been influenced by his works and that are at the frontier of research in this domain today.
Financial Market Bubbles And Crashes
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Author : Harold L. Vogel
language : en
Publisher: Springer Nature
Release Date : 2021-12-17
Financial Market Bubbles And Crashes written by Harold L. Vogel and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-17 with Business & Economics categories.
Economists broadly define financial asset price bubbles as episodes in which prices rise with notable rapidity and depart from historically established asset valuation multiples and relationships. Financial economists have for decades attempted to study and interpret bubbles through the prisms of rational expectations, efficient markets, equilibrium, arbitrage, and capital asset pricing models, but they have not made much if any progress toward a consistent and reliable theory that explains how and why bubbles (and crashes) evolve and are defined, measured, and compared. This book develops a new and different approach that is based on the central notion that bubbles and crashes reflect urgent short-side rationing, which means that, as such extreme conditions unfold, considerations of quantities owned or not owned begin to displace considerations of price.
Uncertainty Expectations And Asset Price Dynamics
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Author : Fredj Jawadi
language : en
Publisher: Springer
Release Date : 2018-11-30
Uncertainty Expectations And Asset Price Dynamics written by Fredj Jawadi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-30 with Business & Economics categories.
Written in honor of Emeritus Professor Georges Prat (University of Paris Nanterre, France), this book includes contributions from eminent authors on a range of topics that are of interest to researchers and graduates, as well as investors and portfolio managers. The topics discussed include the effects of information and transaction costs on informational and allocative market efficiency, bubbles and stock price dynamics, paradox of rational expectations and the principle of limited information, uncertainty and expectation hypotheses, oil price dynamics, and nonlinearity in asset price dynamics.
Rethinking Expectations
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Author : Roman Frydman
language : en
Publisher: Princeton University Press
Release Date : 2013-01-23
Rethinking Expectations written by Roman Frydman and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-23 with Business & Economics categories.
This book originated from a 2010 conference marking the fortieth anniversary of the publication of the landmark "Phelps volume," Microeconomic Foundations of Employment and Inflation Theory, a book that is often credited with pioneering the currently dominant approach to macroeconomic analysis. However, in their provocative introductory essay, Roman Frydman and Edmund Phelps argue that the vast majority of macroeconomic and finance models developed over the last four decades derailed, rather than built on, the Phelps volume's "microfoundations" approach. Whereas the contributors to the 1970 volume recognized the fundamental importance of according market participants' expectations an autonomous role, contemporary models rely on the rational expectations hypothesis (REH), which rules out such a role by design. The financial crisis that began in 2007, preceded by a spectacular boom and bust in asset prices that REH models implied could never happen, has spurred a quest for fresh approaches to macroeconomic analysis. While the alternatives to REH presented in Rethinking Expectations differ from the approach taken in the original Phelps volume, they are notable for returning to its major theme: understanding aggregate outcomes requires according expectations an autonomous role. In the introductory essay, Frydman and Phelps interpret the various efforts to reconstruct the field--some of which promise to chart its direction for decades to come. The contributors include Philippe Aghion, Sheila Dow, George W. Evans, Roger E. A. Farmer, Roman Frydman, Michael D. Goldberg, Roger Guesnerie, Seppo Honkapohja, Katarina Juselius, Enisse Kharroubi, Blake LeBaron, Edmund S. Phelps, John B. Taylor, Michael Woodford, and Gylfi Zoega.
Bursting The Bubble Rationality In A Seemingly Irrational Market
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Author : David F. DeRosa
language : en
Publisher: CFA Institute Research Foundation
Release Date : 2021-04-02
Bursting The Bubble Rationality In A Seemingly Irrational Market written by David F. DeRosa and has been published by CFA Institute Research Foundation this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-02 with Business & Economics categories.
The presence of speculative bubbles in capital markets (an important area of interest in financial history) is widely accepted across many circles. Talk of them is pervasive in the media and especially in the popular financial press. Bubbles are thought to be found primarily in the stock market, which is our main interest, although bubbles are said to occur in other markets. Bubbles go hand in hand with the notion that markets can be irrational. The academic community has a great interest in bubbles, and it has produced scholarly literature that is voluminous. For some economists, doing bubble research is like joining the vanguard of a Kuhnian paradigm shift in economic thinking. Not so fast. If bubbles did exist, they would pose a serious challenge to neoclassical finance. Bubbles would contradict the ideas that markets are rational or work in an informationally efficient manner. That’s what makes the topic of bubbles interesting. This book reviews and evaluates the academic literature as well as some popular investment books on the possible existence of speculative bubbles in the stock market. The main question is whether there is convincing empirical evidence that bubbles exist. A second question is whether the theoretical concepts that have been advanced for bubbles make them plausible. The reader will discover that I am skeptical that bubbles actually exist. But I do not think I or anyone else will ever be able to conclusively prove that there has never been a bubble. From studying the literature and from reading history, I find that many famous purported bubbles reflect inaccurate history or mistakes in analysis or simply cannot be shown to have existed. In other instances, bubbles might have existed. But in each of those cases, there are credible rational explanations. And good evidence exists for the idea that even if bubbles do exist, they are not of great importance to understanding the stock market.
Prosperity For All
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Author : Roger E. A. Farmer
language : en
Publisher: Oxford University Press
Release Date : 2017
Prosperity For All written by Roger E. A. Farmer and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Business & Economics categories.
In the aftermath of the 2008 financial crisis, economists around the world have advanced theories to explain the persistence of high unemployment and low growth rates. Written in clear, accessible language by prominent macroeconomic theorist Roger E. A. Farmer, Prosperity for All proposes a paradigm shift and policy changes that could successfully raise employment rates, keep inflation at bay, and stimulate growth.