问题
单项选择题
Something that oligopolists will try to engage in with another firm in setting a higher price is called :（）
A. high economic profits.
B. prisoner's dilemma.
C. collusion.
答案
参考答案：C
解析：
Collusion is when firms organize into an association to increase profits by controlling prices and output. Collusion can take place when an industry has a small number of competitors and high barriers to entry.