The Tipping Point: How Little Things Can Make a Big Difference is a book by Malcolm Gladwell, first published by Little Brown in 2000. Gladwell defines a tipping point as "the moment of critical mass, the threshold, the boiling point." The book seeks to explain and describe the "mysterious" sociological changes that mark everyday life. As Gladwell states, "Ideas and products and messages and behaviors spread like viruses do." The examples of such changes in his book include the rise in popularity and sales of Hush Puppies shoes in the mid-1990s and the precipitous drop in the New York City... crime rate after 1990. Gladwell describes the "three rules of epidemics" in the tipping points of epidemics. "The Law of the Few", or, as Gladwell states, "The success of any kind of social epidemic is heavily dependent on the involvement of people with a particular and rare set of social gifts." According to Gladwell, economists call this the "80/20 Principle, which is the idea that in any situation roughly 80 percent of the 'work' will be done by 20 percent of the participants.
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