问题
单项选择题
Which of the following statements about the characteristics of a monopoly and those of an oligopoly is least accurate（）
A. In an oligopoly, there are often substantial economies of scale.
B. In both a monopoly and an oligopoly, there are high entry barriers into the market.
C. In an oligopoly, the decisions of each seller are independent of the policies followed by competitors.
答案
参考答案：C
解析：
In an oligopolistic industry, the decisions of a firm often influence the demand, price and profit of rivals. Thus, the welfare of each seller is dependent on the policies follow by major rivals.