优惠券,是现代营销活动中一种常见的促销的方式,是给持券人一个凭证,使其在购买商品时可凭此券免付一定数量的资金。随着社会经济的发展,企业之间竞争的激烈,优惠券被企业广泛应用,报纸、杂志上彼彼皆是,各生产经营企业频频向消费者发送。美国1979年发送了810多亿张优惠券,每户约得到1200张,但是 Coupon is a common promotion method in modern marketing activities. It is a voucher for the ticket holder so that he can use this coupon to pay a certain amount of money when buying goods. With the development of social economy and fierce competition among enterprises, coupons have been widely used by enterprises, newspapers and magazines are different from each other, and production and management companies frequently send to consumers. In the United States, more than 81 billion coupons were sent in 1979. Each household received about 1200 coupons, but