折弯的需求曲线模型对寡头厂商行为的假定是
A.厂商的平均成本和边际成本相等
B.一家厂商降价,其他竞争对手相继降价
C.厂商准确了解市场的需求曲线
D.一家厂商提价,其他厂商并不随之提价
E.按边际成本相等原则分配产量
正确答案是BD
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Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Problems and worries in the office can make one( )at home. (mood)