Salespeople as Researchers: Help or Hazard?
通过对比航空代表与专业访谈员的市场调研结果，发现销售人员难以收集无偏见的信息。
This article describes the background, methodology, and results of a pilot study which compared the market research results achieved by airline representatives versus professional interviewers. The study demonstrates that it is difficult for sales representatives to collect unbiased information.