Barbara Cooke gave us a summary of LSM changes since 1990, which shows that the variables were changed 7 times between 1990 and 2011 alone.
When the AMPS data gets to the media planners or market research companies, it contains a field titled UNIVERSAL LSMs. The latest universal LSM is used in all media plans, sampling and market analyses. Have you considered the effect on your definition of the brand's target market in your strategies?
Our full article contains a chart that shows how the number of people in each LSM group changed each year. This chart uses that particular year's scoring system...
Click here to view the article in full, and here for more information on the authors' availability to do keynote talks at company strategy conferences.
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