Recently the Wall Street Journal wrote about banks trying to control rapidly spiraling rewards costs. I didn’t take seriously the idea that banks would cut back on rewards to consumers to do this because they are offering rich rewards for a reason: they need to do so to attract consumers which earn them a piece of every transaction (plus annual fees, and interest when they don’t pay off their bills).
Josh Barro though takes on the broader claim about banks backing off of big rewards in New York magazine.