In the ultimatum game, which division of the amount is considered a rational choice for both the proposer and the responder who can accept or reject the offer?

Explanation

In the ultimatum game, the proposer offers a split and the responder can accept or reject it. From a purely rational perspective, the proposer should offer the smallest possible amount (e.g., 1%) since the responder should accept any non-zero offer to maximize their gain. Thus, a 99/1 split is considered the rational outcome.