Describe the circulation and rating systems that are used to determine the rates and explain why the advertising system works this way

The rating system is essential in commercial costs, and this is because many people are fond of watching the show and therefore as many people are watching, the advert is regularly made

For instance, a radio or TV programs with many listeners and views will lead to higher advertising costs. Magazines and newspapers that are highly circulated will generate more advertisements compared with the one that ahs lower counts. Therefore this is what is called demand and supply. Consequently, it commands the prices and application of the products in the market.

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