求助各位大牛一道不难的经济学英文题，初学望指教~

1999

收藏 2013-02-02

Assume that at the current market price of $4 per unit of a good, you are willing and able to buy 30 units. Last year at a price of $4 per unit, you would have purchased 20 units. What has most likely happened over the last year?

[A] Supply has decreased.

[B] Quantity supplied has increased.

[C] Demand has decreased.

[D] Supply has increased.

[E] Demand has increased.

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新奥尔良

2013-2-2 09:24:09

I choose D

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fldxl

2013-2-2 09:30:13

答案是E

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fldxl

2013-2-2 09:30:46

答案是E

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fldxl001

2013-2-2 09:31:44

答案是E

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fldxl001

2013-2-2 09:32:25

答案是E

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fldxl001

2013-2-2 09:41:04

The answer should be E. Firstly, please pay attention to the difference between the point move along the curve(B) and the shift of the curve(A/C/D/E), which is the difference between B and other choices. Secondly, pay attention that the question does not ask the equilibrial point, so E should be the most likely one, because the guy is consumer, not a supplier, after the demand curve shifts to the right side, his willing demand should increase under the condition of same price of $4.

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steventung

2013-2-2 10:10:54

B and E
原因楼上已经阐述，不过漏选了B而已

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dguizi

2013-2-2 12:28:02

fldxl001 发表于 2013-2-2 09:41
The answer should be E. Firstly, please pay attention to the difference between the point move along ...

谢谢你的分析，非常的好，都理解了，但是我觉得What has most likely happened over the last year?
所以答案应该是C吧

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dguizi

2013-2-2 12:30:38

fldxl001 发表于 2013-2-2 09:41
The answer should be E. Firstly, please pay attention to the difference between the point move along ...

非常感谢你的分析，看了一下，理解了，但是题目问的是What has most likely happened over the last year?
所以应该选C吧

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fldxl001

2013-2-2 12:46:34

It should be E. Over last year means what happen in the last year. Obviously there is an increase in supply or demand. C says demand has decreased...It is impossible!

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fldxl001

2013-2-2 12:47:20

dguizi 发表于 2013-2-2 12:30
非常感谢你的分析，看了一下，理解了，但是题目问的是What has most likely happened over the last year ...

It should be E. Over last year means what happen druring the last year. Obviously there is an increase in supply or demand. C says demand has decreased...It is impossible!

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dguizi

2013-2-2 13:01:58

fldxl001 发表于 2013-2-2 12:47
It should be E. Over last year means what happen druring the last year. Obviously there is an incr ...

恩，我明白了，非常感谢，我开始时想今年的需求是D1，然后曲线去年的是左移，现在看来还是你说的对，能问你一道昨天没人回答我的一道题吗？？多谢了
https://bbs.pinggu.org/thread-2186543-1-1.html

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fldxl001

2013-2-2 13:06:43

dguizi 发表于 2013-2-2 13:01
恩，我明白了，非常感谢，我开始时想今年的需求是D1，然后曲线去年的是左移，现在看来还是你说的对，能问 ...

It said that the topic has been deleted...

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dguizi

2013-2-2 13:15:29

fldxl001 发表于 2013-2-2 13:06
It said that the topic has been deleted...

9. Refer to the table above. If the market is originally in equilibrium and a price floor of $60 is imposed, which of the following is true?
[A] Net surplus in the economy will decrease.
[B] Producer surplus will decrease.
[C] Demand will increase.
[D] 200 units will be exchanged between consumer and producer.
[E] None of the above is true.

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fldxl001

2013-2-2 19:09:31

It should be E. Because the price floor, which means the lowest price is $60, while the equilibrial price now is $65, so nothing will be changed.

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dguizi

2013-2-3 03:20:34

fldxl001 发表于 2013-2-2 19:09
It should be E. Because the price floor, which means the lowest price is $60, while the equilibrial ...

恩，谢谢了，价格地板低于平衡点所以是无效的，那别的答案就没有可能对了

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dguizi

2013-2-3 03:27:16

fldxl001 发表于 2013-2-2 19:09
It should be E. Because the price floor, which means the lowest price is $60, while the equilibrial ...

太谢谢你了，因为价格地板低于平衡点所以是无效的，所以别的答案都不对

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