Experimental evidence of the importance of gender pairing in bargaining

We study the influence of gender on economic decision making in a two-person bargaining game. By testing hypotheses derived from evolutionary psychology and social role theory, we find that (1) gender per se has no significant effect on behavior, whereas (2) gender pairing systematically affects behavior. In particular we observe much more competition and retaliation and, thus, lower efficiency when the bargaining partners have the same gender than when they have the opposite gender. Implications for real-world organizations are discussed.