总结：2017年“黑色星期五”中的赢家和输家

Promotions: risks and side effects Customers love promotions, but should companies love them too? Few can resist a price promotion, however, as our analyses show, 60 to 70 percent of all promotions in retail lead to losses. In other words, the surplus sales volume doesn’t make up for the profit losses caused by a lower price. Unfortunately, there is no magical recipe for a successful pr