In his paper " The Social Origin of Good Ideas " (University of Chicago), Ronald Burt states: "a dense social network of people in the same department (and who were therefore likely to be personally connected to one another) seemed to create an echo-chamber effect."...
In his book " The Wisdom of Crowds " author James Surowiecki begins with a story of British scientist Francis Galton attending a country fair in which he was able to show that 800 guesses on the weight of a cow, with a handful of those responding experts and a majority of them non...