The Ultimatum Game

Anyone can issue a threat, but how do you know it's not a bluff? When the threat is accompanied by an angry facial expression, it's more likely to show that we need business. We didn't experiment to show it using a game called the ultimatum game where there is a sum of money given to a proposer. He can split it with an acceptor in any proportion that he wants. The acceptor can either accept the share or scuttle the deal,. In which case neither side gets anything.