Definition of the Ultimatum Game The Ultimatum Game is an experiment used in economics and psychology where two participants decide how to split a sum of money. The first participant proposes how to divide the money, and the second can either accept or reject this proposal. If the offer is rejected, both participants end up with nothing. It's like deciding not to eat ice cream at all because one piece is too small. Example of the Ultimatum Game Let's assume a situation where two people have to split $10. Participant A suggests keeping $7 for themselves and giving $3 to Participant B. If B accepts, they get $3, but if they reject, neither gets anything. It's like choosing not to eat a cake at all when someone tries to take the biggest piece. In real life, this can be seen when someone refuses an unfair advantage, resulting in no one benefiting. It's like both players losing a ball because they can’t agree on who gets it. Lessons from the Ultimatum Game The