Capital Ideas: The Improbable Origins of Modern Wall Street (Paperback)

by Peter L. Bernstein (Author) "Paul Samuelson, economist and Nobel laureate, once remarked that it is not easy to get rich in Las Vegas, at Churchill Downs, or at the..." (more)
Key Phrases: insured portfolios, investment counseling firm, basic underlying factor, Wells Fargo, General Motors, Harry Markowitz (more...)

Editorial Reviews

From Library Journal
In a thorough, well-written work on the modern financial marketplace, Bernstein traces the merging of academic research with the curbstone techniques of Wall Street. Previously considered impractical pursuits, the concepts developed in "ivory towers" by various scholars and economists forced the marketplace to rethink its methods in light of events of this century. From early attempts at predicting market behavior and developing the concept of risk and portfolio management theories, these thinkers contributed a theoretical basis to capital markets, bridging the gap in understanding between insiders and outsiders. The text presupposes a knowledge of market and economic theory, but a well-informed reader will find this an interesting summary of the development of modern finance.
- Kenneth J. Cook, Melbourne, Fla.
Copyright 1991 Reed Business Information, Inc. --This text refers to an out of print or unavailable edition of this title.

From Kirkus Reviews
A savvy appreciation of how a small band of disinterested academics has revolutionized the way Wall Street and its offshore counterparts manage the world's investment wealth. A securities-industry veteran and founding editor of The Journal of Portfolio Management, Bernstein provides a lively, lucid history of the scholarship that has helped advance institutional investing beyond the more-art-than-science stage. For openers, he focuses on an obscure French polymath whose turn-of-the-century doctoral thesis on the unpredictability of stock prices anticipated Einstein's work on relativity. Over the years, this Gallic ground- breaker was followed by other pioneers, including an English statistician who put paid to any notion that securities analysts can pick undervalued issues with any consistency, and an American astronomer whose main claim to financial fame was his discovery that stock prices move in random patterns. Eventually, a host of Nobel laureates in Economics (Harry Markowitz, Franco Modigliani, Paul Samuelson, James Tobin, etc.) contributed as well. As Bernstein makes clear, however, professional investors at bank trust departments, foundations, insurance companies, mutual funds, and elsewhere long resisted unconventional wisdom--in particular, that originating with ivory-tower theoreticians. Once the bear market of 1973-74 had wreaked its havoc, though, many of the recalcitrants conceded there just might be something in the idea of systematically controlling risk in the competition for above- average investment returns. At any rate, less than two decades later (with a big assist from powerful numbers-crunching computers), asset allocation, diversification, hedging, performance measurement, portfolio insurance, and allied techniques are norms, not novelties, in the management of large pools of money. While his text may prove a bit difficult for market tyros, Bernstein makes a fine job of tracing the town/gown links that are restructuring big-time investment strategy and practice. -- Copyright ©1991, Kirkus Associates, LP. All rights reserved. --This text refers to an out of print or unavailable edition of this title.

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Product Details

• Paperback: 352 pages
• Publisher: Free Press (March 29, 1993)
• Language: English
• ISBN-10: 0029030129
• ISBN-13: 978-0029030127
• Product Dimensions: 9.2 x 6.1 x 1 inches
• Shipping Weight: 14.2 ounces
• Average Customer Review: 4.1 out of 5 stars See all reviews (18 customer reviews)
• Amazon.com Sales Rank: #382,822 in Books (See Bestsellers in Books)

Customer Reviews

Most Helpful Customer Reviews

67 of 81 people found the following review helpful:

3.0 out of 5 stars Interesting even if cheerleading, May 26, 2000

By	Professor Joseph L. McCauley "Joseph L. McCauley" (Austria+Texas) - See all my reviews

"Poets are the unacknowledged legislators of the world....Let those who will, write the nation's laws, if I can write it's textbooks." (P. Samuelson, quoted by Berstein)

Bernstein has written a fascinating pre-LTCM (pre 8/98) book on the history of econometrics and finance, beginning with the origins of the Cowles foundation as the consequence of Cowles' personal interest in the question: Are stock prices predictable? This book is all about heroes and heroic ideas, and Bernstein's heroes are Adam Smith, Batchelier, Cowles, Markowitz (and Roy), Sharpe, Arrow and Debreu, Samuelson, Fama, Tobin, Samuelson, Markowitz, Miller and Modigliani, Treynor, Samuelson, Osborne, Wells-Fargo Bank (McQuown, Vertin, Fouse and the origin of index funds), Ross, Black, Scholes, and Merton. The final heroes (see ch. 14, The Ultimate Invention) are the inventors of (synthetic) portfolio insurance (replication/synthetic options).

This book consists largely of a pre-LTCM (pre-10/98) cheerleading for option-pricing mathematics based on lognormality, and corresponding synthetic portfolio insurance. Osborne and Mandelbrot are mentioned. The book is not error-free: e.g., Mandelbrot's ideas on stock prices are stated as being the origin of chaos theory (!), and Mandelbrot (of random fractals fame) is misportrayed as an `articulate proponent' of chaos theory! Another error (page 182): "..persistent forces are constantly driving the market toward (Modigliani-Miller) equilibrium." The evidence for the EMH is supposed to constitute the `proof' for this nonsense. So much for `proofs' in economics. So ingrained is the false, misleading and inapplicable notion of "equilibrium" in the minds of economists that it is hopeless to expect to educate them out of their own morass. Even Black, who was educated as a physicist as an undergrad, did no better:

"When people are seeking profits, equilibrium will prevail." (F. Black, quoted by Bernstein)

Among the interesting and entertaining stories that are told are: the displacement of Graham and Dodd's `value theory' by the EMH, the revolutionary role played by Wells Fargo Bank in using the `new finance math', and in creating index funds. The importance of the Miller-Modigliani `theorem, which `proved' that the (not-uniquely-defined) `value' of a corporation is independent of it's debt. Then, there is the wild-haired idea of `portfolio insurance', how to eat your cake and have it too (a free lunch, derived from the assumption that free lunches don't exist). No portfolio can be insured against extreme deviations, especially those that occurred in 10/87 and wiped out confidence in LOR (Leland-O'Brien-Rubinstein Associates). But this failure of finance theory produces no crisis for Bernstein, whose book is the history of heroes, not villains. His last chapter, which can be ignored by the reader without loss, is states his ideology: free market ueber Alles. Or: equilibrium will prevail, even without restoring forces ( I like to put it this way: there are no "springs" in the market). I did get something important from this book: the origin of America's spend-spend-spend ideology in the Modigliani-Miller `theorem'.

If the optimal portfolio is not risky enough, borrow to finance it's purchase. (Wells Fargo's application of Tobin's idea, quoted by Bernstein)

(This is a shorter version of a longer review that appeared in fall(...).

13 of 16 people found the following review helpful:

4.0 out of 5 stars Addicted to the N(0,1);Bernstein has to have his fix, November 19, 2004

By	Michael Emmett Brady "mandmbrady" (Bellflower, California ,United States) - See all my reviews (TOP 1000 REVIEWER)    (REAL NAME)

This book,published in 1992, is an earlier version of Bernstein's "Against the Gods-The Remarkable Story of Risk",published in 1996.Both books cover much of the same ground.Bernstein traces the origins of the post WW2 portfolio analysis-risk management models ,such as the mean variance(standard deviation)model,CAPM( capital asset pricing model )and the Black Scholes options pricing model ,back to the work done at the turn of the century by the French mathematician Louis Bachelier .Basically,this approach analyzes ALL markets,not just financial markets, on the assumptions that price movements are 1)all independent of each other,2)are all small and homogeneous,so that each price movement or change over time can be viewed as if it were a small gas particle interacting with other billions of identically small gas particles in a series of collisions that all are self cancelling in the long run and 3)the law of large numbers and the central limit theorem holds so that the normal probability distribution can be used .The question that then needs to be asked and answered is "What is the degree of empirical evidence supporting the overwhelming use of the normal probability distribution in financial and economic analysis?"The answer,which can be easily obtained by any reader of this review who picks up a copy of Benoit Mandelbrot's latest book(2004),titled "The (Mis)Behavior of Markets",with Richard Hudson,is that there is little,if any,evidence that supports the use of the Normal probability distribution as a general modeling approach.Mandelbrot's extensive research ,duplicated by a number of other researchers in a number of different countries over the last 25 years,has been available since the mid 1950's.How does Bernstein react to this mass of empirical and scientific evidence?Bernstein reacts in a ,to say the least,nonscientific way:"...Mandelbrot remains on the periphery of financial theory,both because of the inconvenience to analysts of accepting his arguments and because of the natural human desire to hope that fluctuations will remain within familiar bounds"(Bernstein,1992,p.132).It is also strange to find the very favorable,well deserved, comments showered upon John Maynard Keynes throughout the book because Keynes would agree with Mandelbrot,not Bernstein.Keynes made it very clear in chapters 28-30 of his A Treatise on Probability(1921;TP) that the exacting assumptions necessary for the general application of the normal probability distribution,excepting physics and biology,were generally not satisfied unless homogeneity and stability held over time for the material being examined.The objections Keynes made ,in the Keynes-Tinbergen debate in the Economic Journal of 1939-40 over Tinbergen's use of a normal probability distribution ,to the claim that econometricians could test and predict business cycles over time,are clearly in the spirit of Mandelbrot's much,much more empirically supported conclusions.Nonetheless,I would still recommenmd that either this book or the 1996 book be bought,but not both.

9 of 12 people found the following review helpful:

4.0 out of 5 stars Good introduction to difficult topic, August 23, 1999

By	[e-mail] (Munich, Germany) - See all my reviews

Capital Ideas can be a nice introduction to a difficult topic and one should read it before starting to get involved in the more profound literature of financing scholar books.

The only two blames I have to make is 1. that the personal side of the stories is expanded too far - it would be enough to state that some teacher is considered a workaholic, the description of his calling at sunday night gets you out of the more important context of what he rally prooved and claimed for the new theory of fi- nancing. and 2. that the differences in the beta and CAPM theories is not so clearly described - although it is a major topic in the book - that the book alone leaves you with a precise idea of the differences. So this must be left for other books.

The book is nonetheless highly recommendable, since it has the advantage that sine ira et studio all theories find their way into the book, so you will not run into the danger that you loose one financial problem just

because the scholarly author of a financing manual forgets to tellabout it, which is often the case.

So get this book soon, it is easy to read, and a friend of mine - a Dr of Medicine who would for the first time read about this topic - was much impressed by it and liked it immediately; and I can add, he even understood it.

Dr. Rudolf C. King CEO, princeandprince.com