Question

Z is a normal good. The equilibrium price and equilibrium quantity of Z in the year 2011 was $25 and 60 units, respectively. In 2014, the equilibrium price of Z had decreased to $15 and the equilibrium quantity had also decreased to 50 units. Other things remaining the same, which of the following could explain this change?a. Shift of the supply curve of Z to the rightb. Shift of the supply curve of Z to the leftc. Shift of the demand curve for Z to the rightd. Shift of the demand curve for Z to the left

Answer 1

Answer:

D) Shift of the demand curve for Z to the left

Since both the equilibrium quantity and price decreased.

Explanation:

A rightward shift of the demand curve should increase both the equilibrium price and quantity.

A rightward shift of the supply curve should increase the equilibrium quantity and decrease the equilibrium price.

A leftward shift of the supply curve should increase the equilibrium price and decrease the equilibrium quantity.