The head of Amex Digital Labs lays out the card giant's innovation strategy, and explains why the future is partnering with tech giants like Apple and Google

· Amex Digital Labs sits at the center of the credit card company's innovation strategy.
· Increasingly, Amex's has leaned into non-card payments, like peer-to-peer and QR codes to pay.
· While historically, Amex had a "build" mentality, now it's more open to partnering with — and potentially acquiring — startups, Luke...