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奥鹏北语14秋《西方经济学》(一)作业2满分答案

奥鹏北语14秋《西方经济学》(一)作业2满分答案

14秋《西方经济学》(一)作业2

一,单选题

1. 厂商实现利润最大化的均衡条件是____。

A. 边际收益MR大于边际成本MC

B. 边际收益MR小于边际成本MC

C. 边际收益MR等于边际成本MC

D. 以上都正确

正确答案:C

2. 政府对买者出售的商品每单位征税5美元,假定这种商品的需求价格弹性为零,可以预料价格的上升()。

A. 小于5美元

B. 等于5美元

C. 大于5美元

D. 不可确定

正确答案:B

3. 对于低档商品而言,在其他情况不变的条件下,如果其价格下降,则()。

A. 替代效应和收入效应都促使需求量增加

B. 替代效应导致其需求量增加,而收入效应导致需求量减少

C. 收入效应和替代效应都导致需求量减少

D. 替代效应导致其需求量减少,而收入效应导致需求量增加

正确答案:B

4. 政府为增加财政收入,决定按销售量向卖者征税,假如政府希望税收负担全部落在买者身上,并尽可能不影响交易量,那么应该具备的条件是()。

A. 需求和供给的价格弹性均大于零小于无穷

B. 需求的价格弹性大于零小于无穷,供给的价格弹性等于零

C. 需求的价格弹性等于零,供给的价格弹性大于零小于无穷

D. 需求的价格弹性为无穷,供给的价格弹性等于零

正确答案:C

5. 在消费者的收入和一种商品的价格保持不变的情况下,随着另一种商品价格的变动,消费者均衡点变动的轨迹,我们称为()。

A. 价格-消费扩展线

B. 收入-消费扩展线

C. 需求-收入扩展线

D. 供给-收入扩展线

正确答案:A

6. 从几何意义上看,边际替代率是()上某一点斜率的绝对值。

A. 无差异曲线

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