Digital payments change buyer psychology long before logic shows up at the party. I’ve been a fan of wireless payments via Apple Watch for nearly a decade. I still love how quick it is and many people don’t realize it’s much more secure than using a card, because a one-time token is swapped rather than disclosing my card number. But there is a subtle shift going on every time a buyer like me taps instead of hands over cash. Recent research calls it Spendception, a psychological effect where...