Benoit B. Mandelbrot, one of the century's most influential mathematicians, is world-famous for making mathematical sense of a fact everybody knows but that geometers from Euclid on down had never assimilated: Clouds are not round, mountains are not cones, coastlines are not smooth. To these classic lines we can now add another example: Markets are not the safe bet your broker may claim. In his first book for a general audience, Mandelbrot, with co-author Richard L. Hudson, shows how the dominant way of thinking about the behavior of markets-a set of mathematical assumptions a century old and still learned by every MBA and financier in the world-simply does not work. As he did for the physical world in his classic The Fractal Geometry of Nature, Mandelbrot here uses fractal geometry to propose a new, more accurate way of describing market behavior. The complex gyrations of IBM's stock price and the dollar-euro exchange rate can now be reduced to straightforward formulae that yield a far better model of how risky they are. With his fractal tools, Mandelbrot has gotten to the bottom of how financial markets really work, and in doing so, he describes the volatile, dangerous (and strangely beautiful) properties that financial experts have never before accounted for. The result is no less than the foundation for a new science of finance.
Customer Reviews:
Avg. Customer Rating: 3.5 / 5.0
Outstanding explanation of math and markets:
To begin, I am not a mathematician or investor, however, this book opened the world of those topics to me in an understandable way. The author is an out-of-thebox thinker who clearly explained the topic well, causing me to investigate the ideas more.
Exposing the Cracks in the Facade - But Not Filling Them In:
First, a warning. This is not a book that's going to teach you how to predict the markets. If you're looking for that kind of book, look elsewhere. In fact, if you're looking to learn about trading or investing in the markets, this is probably not a good book for you. This is not an overly practical book in terms of providing any methods or techniques for use in your day to day trading. The (Mis)Behavior of Markets is much more along the lines of a scholarly discussion of prices. For those with a... more info
No doubt about it: Mandelbrot is smarter than you are:
Mandelbrot is quite a character. I admire the guy's independence, his creativity, his chutzpah and all his achievements in the world of mathematics. However, this book is an intellectual rat hole. This is the type of book you could read and immediately feel smarter than those silly practitioners who have to make do with bad models, like the Gaussian and the CAPM. But the fact of the matter is, Gaussians and CAPM are a good way to go. A good fraction of modern life is based on these models. Anyone who has... more info
Lack of substance:
Mandelbrot & Hudson attack some popular thoughts on how financial markets work and try to set up a model to replace them. There are two main focuses of attacks: that returns follow a normal or Gaussian distribution and that future returns are independent of past returns. The attacks are effective - the authors show that these are false and therefore any existing model based on them is doomed. Next, the authors try to argue that returns follow a "multifractal" - a fractal both in value and a... more info
