[VrindaGupta]

I'll answer here. :)

Banks spend 13x more advertising to men than women. Young women have the largest spending power of any demographic ever - this is a seismic shift in the market.

Credit card rewards target where men are spending 60% more of the time, versus where women are spending 60% more (and control 85% of GDP).

[avarun]

Wow, those numbers are fascinating. I'd love to see the sources if you have them, so I can read up on the topic more.