Amex might be still dumb compared to google, but they have very rich user profiles obtained via DMPS. Infact credit rating companies have vast amounts of data which they provide to these companies for free. The data includes your credit card payment, rating, payment history, credit score, loan/debt history, current debt, pending EMIs, defaulting list and so on.
Google is still trying to figure out exactly how much you earn. DMPs like Adobe's and Oracle's know the exact number and can help companies target people basis salary.
Google is still trying to figure out exactly how much you earn. DMPs like Adobe's and Oracle's know the exact number and can help companies target people basis salary.