Consider one more experimental example to prove the point: the ultimatum game. You are given $100 to split between yourself and your game partner. Whatever division of the money you propose, if your partner accepts it, you each get to keep your share. If, however, your partner rejects it, neither of you gets any money.
How much should you offer? Why not suggest a $90-$10 split? If your game partner is a rational, self-interested money-maximizer -- the very embodiment of Homo economicus -- he isn't going to turn down a free 10 bucks, is he? He is. Research shows that proposals that offer much less than a $70-$30 split are usually rejected.
http://www.latimes.com/news/opinion/...nion-rightrail
Wall Street / Paulson offered at $90/$10 split. America balked.