Jenn and Kathy's PPFs     Suppose another producer, Kathy, can produce 60 pages in the same time it takes Jenn to produce 25, and suppose that Kathy can also produce 60 images to Jenn's 50.

    Kathy obviously has an absolute advantage in the production of both images and pages compared with Jenn. However, it turns out that Jenn still enjoys a comparative advantage.

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