Findings show that the more extreme choices and decisions of men can be both positive and negative. This is the main finding of new research involving more than 50,000 participants in 97 samples, published in the prestigious journal Proceedings of the National Academy of Sciences of the United States of America (PNAS). "We found men were much more likely than women to be at the extreme ends of the behavioural spectrum, either acting very selfishly or very altruistically, very trusting or very distrusting, very fair or very unfair, very risky or very risk averse and were either very short-term or very long-term focused."
