試題詳解

4. One key difference between an oligopoly market and a competitive market is that
(A) oligopolistic firms are interdependent while competitive firms are not.
(B) oligopolistic firms sell completely unrelated products while competitive firms do not.
(C) oligopolistic firms sell their product at a price equal to marginal cost while competitive firms do not.
(D) oligopolistic frms are price takers while competitive firms are not.