Abstract
Recognition of the need for competitive intelligence appears to be widespread and has grown during the past 30 years. However, there appears to have been relatively little change in what is important, in what sources are used and how the information is treated internally. US business seems to recognize the need for competitive intelligence but has not figured out how to use the information effectively or efficiently. In a mail survey, using the Fortune 1000 industrial companies list and the Fortune 500 service companies list, the author describes the changing perceptions, use of and emphasis companies put on the importance of competitive intelligence over three decades.