According to Hutt and Speh (2004), most business marketers commit only a small part of their promotional budgets to advertising, and that is usually through direct mail efforts and trade journals.
Hutt and Speh (2004)指出大部分企业营销人员只把促销预算的一小部分用于广告，而且通常是通过直接邮递和行业杂志。