It's important to avoid making generalizations about the abilities of women and men as managers based on spending habits. Management skills and abilities vary greatly among individuals and are not determined by gender. Effective management is influenced by a range of factors, including education, experience, leadership qualities, and personal preferences.
Was about to say this, I don't think that there's a point in saying who's more economical of the two sexes. Habits are a universal thing and it just so happens that sometimes one gender are doing it more compared to other but that doesn't mean that they're the worse, I mean the debate and statistics misses the point, that there's a lot of men and women out there that's are bad at managing their money and in the end we are focusing on the wrong thing.
I think that the OP made a mistake about trying to carry out generalizations. Statistically and research wise, there are different skills that women are better at handling than the men and vice versa but whatever it is that is can be learnt should not be generalized. Like saying that women are better at handling and keeping money . Totally incorrect. This has been learnt and reinforced overtime by mothers to your daughters so that is why you would say that you're more economical than men. Men can learn too how to be economical.