Dec 262010
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The Problem with Disclosure

Felix Salmon has a good example of why disclosure (the preferred consumer-protection regime of free-market conservatives and bankers) doesn’t work, courtesy of Ryan Chittum. The topic is no-interest balance transfers offered by credit card companies.

As Salmon points out, most people probably realize what the game is. That is, most people know that banks aren’t in the business of lending money for free; they know that the bank is betting that it can raise the interest rate before they pay off the balance. It’s possible that you will end up getting a free loan: “If you’re smart and disciplined and lucky, you might be able to game the system and pay no interest at all on that balance. Bank of America, for its part, does its very best to make you think that you’ll be able to do just that, essentially getting one over on The Man.” But the bank knows it has the numbers on its side; and most consumers know it too, because they know that’s the only reason the bank would make the offer.

And people take the bait anyway, because they think they’re the exception. “Most people, when they sign up for one of these offers, think that they’ll successfully game the system. But of course most of them are wrong.”

The people who think that disclosure solves everything, like Peter Wallison, are remembering only half of what they learned in first-year micro. In order to get utility-maximizing outcomes, you need perfect information and rational decision-making. Disclosure gives you information about the product you are buying, but it doesn’t make you a rational actor – especially not when you have to make predictions about your own future behavior. Remember, not only are we a species in which 90% of people think they are above-average drivers, but 85% of people in hospitals who just caused auto accidents think they are above-average drivers. (Sorry, I can’t remember where I heard that – it was recently, probably on an NPR show.) (Update: engineer27 found the story – it’s from the Planet Money team.)

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