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CA Foundation · Business Economics · Theory of Demand and Supply

If the demand for a good is unchanged and its supply curve shifts to the left, which of the following describes the new equilibrium?

A leftward shift of supply with unchanged demand raises the equilibrium price and lowers the equilibrium quantity. Sellers offer less at each price, creating excess demand at the old price, which pushes price up and reduces the quantity bought along the demand curve.

  1. AHigher equilibrium price and lower equilibrium quantityCorrect
  2. BLower equilibrium price and higher equilibrium quantity
  3. CHigher equilibrium price and higher equilibrium quantity
  4. DLower equilibrium price and lower equilibrium quantity

Explanation

A leftward supply shift means less is offered at every price. At the old price there is excess demand, which bids the price up. As price rises, quantity demanded contracts along the demand curve, so the new equilibrium quantity is lower than before.

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