Why Stock Markets Crash by Didier Sornette

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The scientific study of complex systems has transformed a wide range of disciplines in recent years, enabling researchers in both the natural and social sciences to model and predict phenomena as diverse as earthquakes, global warming, demographic patterns, financial crises, and the failure of materials. In this book, Didier Sornette boldly applies his varied experience in these areas to propose a simple, powerful, and general theory of how, why, and when stock markets crash.

Most attempts to explain market failures seek to pinpoint triggering mechanisms that occur hours, days, or weeks before the collapse. Sornette proposes a radically different view: the underlying cause can be sought months and even years before the abrupt, catastrophic event in the build-up of cooperative speculation, which often translates into an accelerating rise of the market price, otherwise known as a "bubble." Anchoring his sophisticated, step-by-step analysis in leading-edge physical and statistical modeling techniques, he unearths remarkable insights and some predictions--among them, that the "end of the growth era" will occur around 2050.

Sornette probes major historical precedents, from the decades-long "tulip mania" in the Netherlands that wilted suddenly in 1637 to the South Sea Bubble that ended with the first huge market crash in England in 1720, to the Great Crash of October 1929 and Black Monday in 1987, to cite just a few. He concludes that most explanations other than cooperative self-organization fail to account for the subtle bubbles by which the markets lay the groundwork for catastrophe.

Any investor or investment professional who seeks a genuine understanding of looming financial disasters should read this book. Physicists, geologists, biologists, economists, and others will welcome Why Stock Markets Crash as a highly original "scientific tale," as Sornette aptly puts it, of the exciting and sometimes fearsome--but no longer quite so unfathomable--world of stock markets.

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About Didier Sornette

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Didier Sornette is Professor of Geophysics at the University of California, Los Angeles, and a research director at Centre National de la Recherche Scientifique, France. A specialist in the scientific prediction of catastrophes in a wide range of complex systems, he is the author of the textbook "Critical Phenomena in Natural Sciences" (Springer-Verlag) and has authored or coauthored more than 300 papers in international journals.
Published April 11, 2009 by Princeton University Press. 448 pages
Genres: Business & Economics. Non-fiction

Unrated Critic Reviews for Why Stock Markets Crash

Seeking Alpha

The lore associated with stock market crashes fascinate nearly all involved in the game of investing, just is the case that the fear of a crash paralyzes most traders, in extreme cases keeping them up at night and fearful to pull the trigger on a trade.

Mar 31 2011 | Read Full Review of Why Stock Markets Crash

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