Paul Straub and J. Keith Murnighan (1995) varied the amount of information given to offerers and responders. Some offerers were told that responders would know the amount that the offerer had to work with, while other offerers were told that responders would not have this piece of information at their disposal when presented with the offer. If the fairness hypothesis is correct, this change of information should not matter. The average offer should be roughly the same in both conditions. But it wasn’t. In the scenario where the starting amount is $10, the mean offer made to responders was $4.05 in the complete information condition, but $3.14 in the partial information condition. When the amount was $80, the means were $30.73 and $23.00 respectively (Straub and Murnighan 1995: 353).