But if one wholesaler has a demonstrable difference,such as guaranteed fast delivery or lower prices,this is another matter. Advertising works best when a business has a competitive advantage that it wants to communicate to customers.

• 但假如某个批发商具有独特的优势，能确保快捷的送货或更低的价格，情况就不同了，当企业具有某种竞争优势想传递给消费者时，广告就能起最大的作用。