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Jessica likes to participate in B2C e-commerce, but recently has had a number of friends who have had problems shopping online. She wonders if it is safe to shop online and just how much she is compromising her privacy by doing so. Jessica is justifiably worried about the security of the personal information and credit card information she regularly supplies while shopping on the Web. In addition, she knows that merchants who market goods and services over the Internet sometimes secretly gather information and provide it to advertisers or other interested parties.
-As Jessica begins her research of just how shopping carts work,she is surprised to find that many e-commerce sites store information about her Web visits on her hard drive.What do these sites use to store visit information?
Total Variable Costs
The sum of all costs that vary directly with the level of output produced.
Earrings
Jewelry designed to be worn on the ears, available in various styles and materials.
Variable Input
An input whose quantity varies with production levels, affecting cost and output.
Marginal Cost
The added cost of producing one additional unit of a product or service.
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