Summary of Infotopia

How Many Minds Produce Knowledge

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Infotopia book summary
If two heads are better than one, then three or four heads are even better. How group decision making works.


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In this delightful book, Cass R. Sunstein offers a cogent, compact and gently witty discussion of information sharing. His explanations of how different knowledge-aggregation processes work are extremely useful. They range from the theoretical (laying out the philosophical structures underpinning deliberation) to the practical (offering focused and specific suggestions for improvement). This certainly isn’t the first book on how groups create knowledge – thinkers have rushed to make sense of the new possibilities that information technology presents. It is, however, one of the more quietly critical approaches, one that debunks extreme claims, points out the dangers that balance the often-trumpeted benefits and shares first-hand experiences. Sunstein is an enthusiast for certain types of collective information processing, but he is far from naïve. getAbstract recommends this book to managers interested in improving organizational decision making.

In this summary, you will learn

  • How groups process information
  • How they can improve their information processing
  • What are the benefits of sharing knowledge


Sharing What You Know
Individuals have “bits of information” that, if shared, would benefit the groups to which they belong. However, groups often fail to put all this information together. As a result, everybody suffers. You can make this information available in four basic ways:
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About the Author

Cass R. Sunstein teaches at the University of Chicago Law School. He is the author of Radicals in Robes, and other books.

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