試題詳解

14. (5%) Which of the following statement(s) is true?
(A)Announcing a price change in January on December 9 shifts current demand to the left.
(B)Announcing a price change in January on December 9 cause current shortage due to price control.
(C) Implementing a new price and increasing the amount expropriated after New Year's weekend shifts both demand and supply to the right, so equilibrium quantity increases.
(D) After the long weekend of New Year's Day, supply shifts in a magnitude larger than demand.
(E)None of the above.