FIGURE 3-2 Refer to Figure 3-2.The movement along the supply curve,S,from point a to point c,could be caused by

Question

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When the price of energy-efficient light bulbs increases, the suppliers are willing to supply more of it, resulting in a movement along the supply curve from a to c. A decrease in the price of energy-efficient light bulbs (A), glass (B), or ordinary light bulbs (E) would cause a shift in the supply curve, not a movement along it. An increase in the number of suppliers (C) would also lead to a shift in the supply curve, not a movement along it.