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Price and TOK

What areas of knowledge can be used to explain the pricing decisions of businesses?These items in the photo above are from a supermarket in Hong Kong. The USD prices for these products are:$10.3 for 12 frozen sausages$10.3 for frozen garden peas$12.6 for a single Fuji apple, and - wait for it...$166.2 for these strawberries! Each strawberry has been individually wrapped.

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