This may be a case where the savings (i.e. money from selling data in return for a big pile of cash) are actually passed on to the customer - e.g. transaction costs are lower for Visa/Mastercard for merchants, which is why they sometimes don't accept Amex and Discover.
It would be interesting to see if Visa and Mastercard have some clause which prevents Google from buying data from AMEX and Discover (competitive advantage for them because then Amex and Discover's transaction costs aren't subsidized) in return for agreeing to part with their data. Said another way, what's preventing Google from also getting data from Amex or Discover? Its not as if Google is going to say no.
This may be a case where the savings (i.e. money from selling data in return for a big pile of cash) are actually passed on to the customer - e.g. transaction costs are lower for Visa/Mastercard for merchants, which is why they sometimes don't accept Amex and Discover.
It would be interesting to see if Visa and Mastercard have some clause which prevents Google from buying data from AMEX and Discover (competitive advantage for them because then Amex and Discover's transaction costs aren't subsidized) in return for agreeing to part with their data. Said another way, what's preventing Google from also getting data from Amex or Discover? Its not as if Google is going to say no.