Use the Following to Answer Question(s): Simultaneous Shifts in Demand

Multiple Choice

Use the following to answer question(s) : Simultaneous Shifts in Demand and Supply

-(Exhibit: Simultaneous Shifts in Demand and Supply) D₁ and S₁ are original supply and demand curves, and S₂ and D₂ are new curves.In this market, the change in supply may have resulted from:

A) wage increases for the workers.
B) an improvement in technology.
C) a decrease in the number of sellers.
D) all of the above.