From The Science Blog [emphasis ours]:

Several features of credit cards make them different from traditional forms of lending and encourage high levels of consumer debt by taking advantage of “consumers’ cognitive and behavioral vulnerabilities,” Adam J. Goldstein wrote in the latest issue of the University of Illinois Law Review. Goldstein is a former editor at the review who now works for a Chicago law firm.

This gives me a great idea: when you call your credit card company to ask for a lower interest rate (if you’ve never been late with payments, you might be surprised at their response) be sure to tell them that they’re evil.