Coupon wiki ita
Some retailers and companies use verification methods such as unique barcodescoupon ID numbers, holographic seals, and watermarked paper as protection from unauthorized copying or use.
Retrieved November 30, Therefore, the posted price paid by price-insensitive buyers can be increased, while using coupon discounts to maintain the price for price-sensitive buyers who would not buy at a higher price. This creates room for employees, up from that Groupon currently employs in Washington.
Retrieved 18 December