Suppose poland produces only tablets and smartphones. the resources that are used in the production of these two goods are not specialized—that is, the same set of resources is equally useful in producing both smartphones and tablets. the shape of poland's production possibilities frontier (ppf) should reflect the fact that as poland produces more smartphones and fewer tablets, the opportunity cost of producing each additional smartphone

There's a cartoon that has become a social media meme. two pigs are chatting. the first pig says, "isn't it great? we have to pay nothing for the barn." the second pig replies. "yeah! and even the food is free." this cartoon is frequently linked to a quote that goes something like this: "if you're not paying for it, you're not the customer; you're the product being sold." what do these statements imply about social media? what are the specific ways that social media users become a product that is being sold?