Indeed, in Mr Gordon's book, the Internet is the best system yet devised for propagating mob psychology.

ECONOMIST: Business books (2)

Instead, Dr Raihani and Ms McAuliffe decided to follow a new fashion in psychology and recruit their human guinea pigs through a system called Mechanical Turk.

ECONOMIST: Exactly when is something perceived as ��not fair��?

Even though neither had any background in psychology, Myers and Briggs enjoyed great success with their system.

FORBES: 'Your MBTI score is hardly more meaningful than your zodiac sign'