Multiple Choice
FIGURE 3-2
-Refer to Figure 3-2.A shift of the supply curve from S to S1 could be caused by
A) an increase in the price of energy-efficient light bulbs.
B) a decrease in the price of energy-efficient light bulbs.
C) an expectation that new government regulations will ban the use of energy-efficient light bulbs.
D) a change in consumers' preferences away from ordinary light bulbs toward energy-efficient light bulbs.
E) a decrease in the price of glass,a major input in the production of energy-efficient light bulbs.
Correct Answer:
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