Rational Bubbles

2012-12-06 Business & Economics

Author : Matthias Salge
Release : 2012-12-06
Genre : Business & Economics
Kind : eBook
Book Rating : 817/5 ( reviews)

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Book Synopsis Rational Bubbles by : Matthias Salge

Download or read book Rational Bubbles written by Matthias Salge. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: 3 On the Economic Relevance of Rational Bubbles 79 3. 1 Capital markets . . . . . . . . . 80 3. 1. 1 Efficient capital markets 86 3. 1. 2 Rational bubbles on capital markets. 93 3. 1. 3 Economic caveats . 103 3. 2 Foreign exchange markets 109 3. 3 Hyperinflation. . . . . . . 117 4 On Testing for Rational Bubbles 123 4. 1 Indirect tests . . . . . . . . . 123 4. 1. 1 Variance bounds tests 124 4. 1. 2 Specification tests . . . 137 4. 1. 3 Integration and cointegration tests 140 4. 1. 4 Final assessment of indirect tests . 150 4. 1. 5 A digression: Charemza, Deadman (1995) analysis. 151 4. 2 Direct tests . . . . . . . . . . . . . . . . . . . . . . . . 157 4. 2. 1 Deterministic bubble in German hyperinflation. 158 4. 2. 2 Intrinsic bubbles on stock markets. 163 4. 2. 3 An econometric caveat . . . . . 168 4. 2. 4 Final assessment of direct tests 172 5 On the Explanatory Power of Rational Bubbles on the G- man Stock Market 175 5. 1 Data . . . . . . . 175 5. 2 Direct test for rational bubbles 181 5. 2. 1 Temporary Markovian bubbles. 184 5. 2. 2 Temporary intrinsic bubbles . . 193 ix 5. 2. 3 Permanent intrinsic bubbles 198 5. 3 A digression: Testing for unit roots 204 6 Concluding Remarks 215 A Results 221 A. 1 Temporary markovian bubbles. 221 A. 2 Temporary intrinsic bubbles . . 225 A. 3 Permanent intrinsic bubbles - Class 1 to 2 229 A. 4 Permanent intrinsic bubbles - Class 3 to 6 230 A. 5 Integration tests. . . . . . . . . . . . . . .

Bursting the Bubble: Rationality in a Seemingly Irrational Market

2021-04-02 Business & Economics

Author : David F. DeRosa
Release : 2021-04-02
Genre : Business & Economics
Kind : eBook
Book Rating : 110/5 ( reviews)

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Book Synopsis Bursting the Bubble: Rationality in a Seemingly Irrational Market by : David F. DeRosa

Download or read book Bursting the Bubble: Rationality in a Seemingly Irrational Market written by David F. DeRosa. This book was released on 2021-04-02. Available in PDF, EPUB and Kindle. Book excerpt: 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.

The Impossibility of Rational Bubbles

1985 Capital assets pricing model

Author : Behzad T. Diba
Release : 1985
Genre : Capital assets pricing model
Kind : eBook
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Book Synopsis The Impossibility of Rational Bubbles by : Behzad T. Diba

Download or read book The Impossibility of Rational Bubbles written by Behzad T. Diba. This book was released on 1985. Available in PDF, EPUB and Kindle. Book excerpt: A rational bubble would involve a self-confirming belief that an asset price depends on information that includes variables or parameters that are not part of market fundamentals. The existing literature shows that, if market fundamentals are economically interesting, i.e., forward looking, any rational bubbles would be either explosive or implosive. Further arguments based on the existing literature show that utility maximizing behavior implies finite bounds on asset prices and, accordingly, precludes both explosive and implosive rational price expectations, except for the possible case of an implosion in the value of fiat money. These arguments rule out both positive and negative rational bubbles, except for the poissibility of rational inflationary bubbles.This paper extends the theoretical analysis of rational bubbles in two ways. First, it shows that, although a supply response of the current asset stock to the current asset price dampens fluctuations in market fundamentals, such a response would cause a rational bubble to explode or to implode even faster.Thus, the explosiveness or implosiveness of rational bubbles isnot an artifact of assuming that the asset stock evolves autonomously. Second, and more importantly, the present analysis considers the inception of rational bubbles and shows that, for anegative rational bubble -- such as a rational inflationary bubble -- to get started, a positive rational bubble also would have to have positive probability. Specifically, the expected initial absolute value of a potential negative rational bubble cannot exceed the expected, initial value of a potential positive rational bubble.This result dramatically expands the theoretical basis for precluding rational bubbles. Specifically, because utility maximization directly rules out rational deflationary bubbles, the inception of a rational inflationary bubbles is also precluded

Crises in the Economic and Financial Structure

1982 Business & Economics

Author : Paul Wachtel
Release : 1982
Genre : Business & Economics
Kind : eBook
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Book Synopsis Crises in the Economic and Financial Structure by : Paul Wachtel

Download or read book Crises in the Economic and Financial Structure written by Paul Wachtel. This book was released on 1982. Available in PDF, EPUB and Kindle. Book excerpt: Discuss four crisis-prone areas of the economy-monetary control, bankruplcy, the international economy, and speculative bubbles.

Asset Price Bubbles

2005 Business & Economics

Author : William Curt Hunter
Release : 2005
Genre : Business & Economics
Kind : eBook
Book Rating : 537/5 ( reviews)

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Book Synopsis Asset Price Bubbles by : William Curt Hunter

Download or read book Asset Price Bubbles written by William Curt Hunter. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: A study of asset price bubbles and the implications for preventing financial instability.

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Rational Bubbles

Bursting the Bubble: Rationality in a Seemingly Irrational Market

The Impossibility of Rational Bubbles

Crises in the Economic and Financial Structure

Asset Price Bubbles

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