The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss
books, and put numerical goals alongside individual performance numbers on grease boards
around the plant. Daily goals and public accountability were combined with daily rewards and
public recognition.
The Hawthorne plant of the Western Electric Company in Cicero, Illinois, also gured this
out, albeit accidentally. The year was 1955, and their nding was signi cant: increasing lighting
in the plant made workers more productive. Then someone pointed out (I have to imagine a
sweaty- palmed intern) a confusing detail. Productivity also improved when they dimmed the
lighting! In fact, making any change at all seemed to result in increased productivity.
It turned out that, with each change, the workers suspected they were being observed and
therefore worked harder. This phenomenon--also called the "observer e ect"--came to be
known as "the Hawthorne Effect."
Reinforced by research in game design, Jack Stack and Western Electric's results can be
annaabi.ee 
