Individuals chose between two 'salary increase' options: (1) an increase of $500 for themselves and $500 for a colleague; or (2) an increase of $600 for themselves and $800 for a colleague. The gender of the colleague was manipulated, hence permitting the investigation of four possible gender...

In the two-person ultimatum game, an allocator is required to split a given sum of money with a recipient. Subsequently the recipient can either accept or reject the offer. If it is accepted, both players receive their respective splits, while if it is rejected neither of them get anything....