On average, research found women age away more than men - in fact, the most common decision from men was to not share anything with their partner, while women tended to split the money 50-50.
Women gave away 40 per cent more than men on average, tending to give €3.50 while men gave €2.50.
Women were characterised as significantly more generous than men, according to research published in PLOS One.
One of the largest studies of its kind has revealed a key difference in how generous men and women are.
Women who showed a stronger reasoning ability were linked to being less generous, the research observed.