麻烦老师，这题什么意思，题干哪里可以看出这说的是垄断

问题如下：

Question

Which characteristic is a firm least likely to exhibit if it faces a downward sloping demand curve for its product(s), many competitors, and zero economic profits in the long run?

选项：

A.No pricing power

B.Low barriers to entry

C.Differentiated product

解释：

A is correct. The characteristics of monopolistic competition include a large number of competitors, low pricing power, and the production of differentiated products (through advertising and other non-price strategies), but these still result in some pricing power. The ease of entry results in zero economic profits in the long run.

B is incorrect. Low barriers to entry are a characteristic of monopolistic competition.

C is incorrect. Product differentiation is a characteristic of monopolistic competition.