Compared to a competitive market, a monopoly situation will produce:（）
A. less output, and the sum of the consumer surplus and the producer surplus will be reduced.
B. more output, and the sum of the consumer surplus and the producer surplus will be reduced.
C. less output, and the sum of the consumer surplus and the producer surplus will be increased.
参考答案：A
解析：
A monopolist, faced with the same demand curve that would exist under perfect competition, will decrease output to the point that marginal revenue equals marginal cost. This will have the effect of reducing the sum of the consumer surplus and the producer surplus, relative to what they would have been under perfect competition. However, the size of the producer surplus increases on an absolute basis at the expense of the consumer surplus.
