The quantity of shoes produced is measured along the horizontal axis of a PPF and the quantity of shirts is measured along the vertical axis. As you move down toward the right along the PPF, the marginal cost of
A) shoes decreases.
B) shoes increases.
C) shirts increases.
D) shoes and shirts is equal at the midpoint between the vertical and horizontal axis.
Question 2
Most corn produced in the United States is used for animal feed. The demand for corn is inelastic. These facts mean that
A) there are many substitutes for corn in feeding animals.
B) there are few substitutes for corn in feeding animals.
C) there are no substitutes for corn in feeding animals.
D) animals are not buying the corn themselves, so we cannot learn anything from these facts.
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