115. Refer to Figure 9-10. When trade takes place, the quantity Q2 – Q1 is
the number of rifles bought and sold in Mexico.
the number of rifles produced in Mexico.
the number of rifles exported by Mexico.
the number of rifles imported by Mexico.
116. Refer to Figure 9-10. Mexico’s gains from trade are represented by the area that is bounded by the points
(0, P0), (Q0, P0), (Q2, P1), and (0, P1).
(0, P1), (0, P2), (Q0, P0), and (Q1, P1).
(Q0, P0), (Q2, P1), and (Q1, P1).
(0, P0), (0, P2), and (Q0, P0).
117. Refer to Figure 9-10. The area bounded by the points (Q0, P0), (Q2, P1), and (Q1, P1) represents
Mexico’s gains from trade.
the amount by which Mexico’s gain in consumer surplus exceeds its loss in producer surplus due to trade.
Mexico’s gain in total surplus due to trade.
All of the above are correct.