CHICAGO (WLS) -- The type of credit card you use might signal how big of a spender you are.
A study finds American Express cardholders charge an average of almost $1,700 a month - the most of all the major credit cards.
Visa users are second, racking up almost $850 a month in charges - followed by Discover and Mastercard users.
The study was conducted by an analyst at Morgan Stanley who says they show American Express cards attract more affluent customers.
Does your credit card signal that you're a big spender?
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