The Federal Reserve Bank of Chicago has conducted a study that shows credit cards that offer rewards points or cash back prompt consumers to spend more and accrue more debt. The report states that just the promise of one percent cash back yields, on average, an increase in spending of $68 a month and in credit card debt of $115 a month. In one report about the study, Fred Yager of ConsumerAffairs.com commented, “About 20 years ago a top economist told me that one reason the savings rate in the country was so low and that so many more people were going into credit card debt was because credit card companies had linked up with frequent flyer rewards programs.”