Explore limits on strict rationality in face of seemingly unfair behavior. In groups of 2, one student demands a fee from another student (from 0% to 100% of total profit), which in turn accepts or rejects the offer; profits for both are only realized if the fee is accepted.
One student demands a fee from another student, sliding a scale from 0% to 100% of the total profit. The other student accepts or rejects the offer; profits for both are only realized if the fee is accepted.