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by nl 5590 days ago
Coupons are a very effective way to maximize revenue on a product by segmenting your market.

"Rich" people would usually never consider coupon clipping, and so will pay full price.

By putting ever more complicated ways to save money ("save 5% by clipping this", "save 50% by clipping 10 weeks of these", "save 90% by clipping 10 of these, then sending off for the rebate") a seller can make sure that even the poorest can buy their product at the cost of inconvenience.