While we somehow understand revenge on an intuitive level between individuals, I do suspect that companies, assuming that people are rational, completely miss and underestimate the motivation people have for revenge.
Dan ArielyWhen we save, everybody in the household is just suffering. By having the coin in a visible way, when you scratch, you can say the person that is in charge of the making money for the family is doing the right thing.
Dan ArielyThe major thing that holds you back when you're trying to change a bad habit like eating, smoking, or drinking too much is your belief you are out of control.
Dan ArielyBut because human being tend to focus on short-term benefits and our own immediate needs, such tragedies of the commons occur frequently .
Dan Ariely