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Fooled by Randomness: The Hidden Role of Chance in Life and in the Markets | 
| Autor: Nassim Nicholas Taleb
Urheber: Nassim Nicholas Taleb
Verleger: Penguin
Kaufen Neu: EUR 7,06
Neu (43) Gebraucht (3) ab EUR 5,91
Bewertung:  2 Rezensionen
Verkaufsrang: 1810
Medium: Taschenbuch
Ausgabe: Open Market Ed
Seiten: 368
Versandgewicht: 0.5
Maße (innen): 7 x 4.3 x 0.9
ISBN: 014103274X
EAN: 9780141032740
Publikation: März 29, 2007
Verfügbarkeit: Gewoehnlich versandfertig bei Amazon in 24 Stunden
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A great and important book! Juli 4, 2008
Maddemathiger (Mainz)
7 aus 8 fanden die folgende Rezension hilfreich
This book is one of the most important books ever written! Although it may seem far fetched I think that this is true for several reasons.
One of the most important reasons is its main point : We all being fooled by randomness. This is especially true for areas of our lifes that we normally would not expect randomness to manifest itself in. It is a deeply inspiring book and has the ability to change the way the reader percepts the world around him, or the things that happen around him.
Having read his sescond book "Black Swan" I must say that I find "Fooled by Randomness" a far better read. It is concise and written in beautiful English. I just makes the point very clear and this is by no means easy if one looks at the topic. This is one of the books that had to be written and is a must read for every "thinking man" out there.
Managing Unpredictable Variations in Order to Prosper! Mai 16, 2007
Donald Mitchell (Boston)
11 aus 12 fanden die folgende Rezension hilfreich
Every person who is interested in investing should read this book!
In investing, few can tell the difference between being lucky and smart. Being successful in the short term can come from either source. If it is coming from unrecognized sources of luck, however, the behavior that the investor associates with success can sink the ship. The cautionary tale of Long Term Capital Management is cited in the book as an example of this point. "If you're so rich, why aren't you smart?" is the wonderful reversal here on the old saw.
I see this effect all the time in my consulting practice with helping companies understand how their decisions affect their stock price. A large percentage of people feel that they know all the answers when their stock price is rising. They keep doing the same things when the stocks are falling. Few survive to still have top jobs when the cycle shifts again. Then a new group of self-confident people take over who often don't know any more than those who preceded them. It's just that their track records look better.
Fooled by Randomness will help make you more knowledgeably humble about what you can expect to accomplish with investments. Not only do fewer than one percent outperform the market averages over long time periods, the ones who do are probably often being aided by luck as well. "Get thee to the index funds as soon as possible" is the message that most should take away from this book. Better yet, buy them when multiples are low!
The book's fundamental point is that there is tremendous volatility in any investment. Ignore that volatility to your peril.
At the same time, you should be cautious about how well you understand the volatility. Stocks at their lows can still go to zero. There are all kinds of events that can happen, that have not done so yet. When they do, throw out all the old rules of investing. The terrorist attacks on the United States last week are probably an example of this. So each investment must be made as though you could be totally wrong. This means that you have to manage your risk exposure to events you don't even know how to expect.
I loved his example of the joint probabilities of having a rare disease if you get a positive result on a test for that disease. Even most doctors apparently don't know how to evaluate that one. If even well educated people cannot quantify two known risks occurring simultaneously in their own field, how can investors be expected to make good decisions?
Dr. Taleb has some very good advice for how to handle the psychology of being able to do this. He upholds the Stoic ideal -- "the attempt by man to get even with probability" which encourages "wisdom, upright dealing, and courage." This means not chasing the latest investment fad or fashion, not looking at your investments very often, and being open to both sides of any idea (it could go wrong as well as right -- what are the consequences of both?). I especially liked his idea of watching CNBC with the sound off so that the "experts" seem humorous and you are less likely to hear and follow their advice. Even more poignant was his advice not to live on Park Avenue where living with all of the arrogant, temporarily lucky can make you feel small. Instead, live somewhere that the results of your cautious approach will cause you to be the envy of all.
Dr. Taleb impressed me with his willingness to tell stories on himself about how quickly he can become superstitious when things are going well, take on excess risks, and start looking too short term. After all, we are only human!
The importance of this book can only be appreciated if you go back and think about your biggest investing successes. How much was luck versus skill? A good way to test is to see if the same approach has continued to work for you whenever you use it. Another good test is to see how often it would have backfired in the past.
In my research on good decision making, I find that those who guard the downside first make the most money in the long run. They are able to find ways to get the best of both worlds!
Remember that the two-edged sword can cut in either direction!
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