Chapter 10 – Media Planning and Strategy
10-9
8. Some marketers estimate that the average consumer may be exposed to as many as 3,000 ads per day.
Current estimates of effective frequency are based on 1,500 exposures per day. Discuss how, if at all,
more exposures to advertising may necessitate changes in effective frequency.
First, let’s realize that the number of exposures to ads is a very difficult figure to derive. While
estimates now are supposed to be in the 3,000 area, there are those who believe that the number may
be more like 4,000. Nevertheless, it is safe to recognize that the number of exposures has significantly
increased over the past few years.
9. Some business to business advertisers (for example, copy machine companies) advertise on NFL
Sunday and/or Monday Night football games. As might be expected, such a buy would lead to a high
level of waste coverage. Explain what is meant by waste coverage. Discuss whether this might or
might not be a good media buy. (LO3)
Waste coverage refers to overexposure, in which the media coverage exceeds the target audience. If
the media reaches people who are not sought as buyers and are not potential users, then it is
potentially wasted, and of little or no value to the marketer.
10. Explain what is meant by BDI and CDI. How do advertisers use these indices in their media
planning? (LO1)
Pages 338-341 discuss BDI and CDI. BDI compares the percentage of the brand’s total US sales in a
given market area with the percentage of the total population in the market. The resulting BDI
indicates the sales potential for that brand in that market area. CDI provides information on the
potential for development of the total product category rather than specific brands.