As a special good, what the media sale to the advertiser is not the common attention of big number audience, but builds the audience as different demographic targets to make money by the format radios to meet the special needs of advertisers.

• 媒介出售给广告商以获取利润的特殊商品 ,已经不再简单地是“大数法则”所追求的尽量多的听众的共同兴趣和注意力 ,而是细化到通过细分的音乐类型电台所创造和推动不同趣味的流行文化 ,把具有相同人口学特征的听众紧密地聚集在一起 ,以满足广告商对于潜在目标消费者的需求并最终获取利润。