
Daniel Kahneman, Psychologist, Behavioral Economist, Nobel Prize in Economics, 2002
MOTIVATION
Risking money activates your brain’s survival circuitry, bypassing your normal resistance.
Even a dollar a week will affect your behaviour, but the more you put at stake, the more reliable you get. If you don’t keep your word we’ll send the money to a good cause. Unless you choose the last option.

Amos Tversky, Cognitive and Mathematical Psychologist, pioneer in cognitive bias and risk