Well, for starters, it?s not a coupon company nor a marketing company. At its core, Groupon?s U.S. business is a receivables factoring business, as I wrote last year. They give loans to small businesses at a very steep rate (the price of the discount plus Groupon?s commission). They get the money to fund these loans from credit card companies such as Chase Paymentech. Groupon is essentially a sub-prime lender that does zero risk assessment. And as word continues to spread about what a terrible deal running a Groupon is for many categories of businesses, the ones that will choose to run Groupons are the ones that are the most desperate. For U.S. based businesses, the only time I can definitely recommend running a Groupon is if it is otherwise going to go out of business.
http://venturebeat.com/2012/03/31/wh...-for-collapse/