Exhibit 18-4 
-Refer to Exhibit 18-4. The change in consumer surplus from free trade is equal to area:
Definitions:
Nielsen Television Index Ranking
A measurement system developed by Nielsen Media Research that provides ratings and viewership data for television programs to help advertisers and networks evaluate audience engagement.
TV Households
The number of residential households within a market area that own at least one television set, used as a metric for broadcasting ratings.
Rating Point
A measurement in broadcasting and advertising that indicates the percentage of the potential audience reached by a particular piece of media content.
Advertising Rates
The cost associated with placing advertisements in various media channels like television, radio, print, or online.
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