This is an interesting article and piece of research out of the US on mixed gender teams and decision-making.

We see when we run team simulation exercises and assessments that there is an advantage to having women in a team or group. We find that the quality of the solution is usually better. Women are better at helping to bring compromise or consensus.

An only male team can start to show typical male behavioural traits - power, aggression, stubbornness, ego, competitiveness, which can all lead to a compromise of the solution.

A team working well together, showing excellent interpersonal and rational skills should increase the quality of the solution by at least 50% over the best individual's solution. However, I did see a regression in a team we were working with in the Arctic this year.