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<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;"><span lang="EN-GB" style="mso-fareast-font-family: 宋体;"><font size="3"><font face="Times New Roman">Joan has just received a free ticket to attend the Artic Monkeys’ concert next Wednesday night. The face value of the ticket is £50.<span style="mso-spacerun: yes;">  </span>The ticket cannot be resold or given to a friend. However, Snow Patrol is also playing on the same evening. A ticket to the Snow Patrol concert costs £40.<span style="mso-spacerun: yes;">  </span>If this were the only available activity on the night, Joan would be willing to pay up to £50 to see Snow Patrol.<span style="mso-spacerun: yes;">  </span>Attending one of the two concerts are the only two activities that Joan is considering for Wednesday night. There are no other costs (e.g. transportation costs) to attending either of the two concerts. What is Joan’s opportunity cost of going to the Artic Monkeys’concert? Please choose one of the following answers and <i style="mso-bidi-font-style: normal;">explain your choice</i>.<p></p></font></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-GB" style="mso-fareast-font-family: 宋体;"><p><font face="Times New Roman" size="3"> </font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-GB" style="mso-fareast-font-family: 宋体;"><p><font face="Times New Roman" size="3"> </font></p></span></p><ol type="a" style="MARGIN-TOP: 0cm;"><ol type="1" style="MARGIN-TOP: 0cm;"><li class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; mso-list: l0 level2 lfo1; tab-stops: list 72.0pt;"><span lang="EN-GB" style="mso-fareast-font-family: 宋体;"><font size="3"><font face="Times New Roman">0<p></p></font></font></span></li><li class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; mso-list: l0 level2 lfo1; tab-stops: list 72.0pt;"><span lang="EN-GB" style="mso-fareast-font-family: 宋体;"><font size="3"><font face="Times New Roman">10<p></p></font></font></span></li><li class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; mso-list: l0 level2 lfo1; tab-stops: list 72.0pt;"><span lang="EN-GB" style="mso-fareast-font-family: 宋体;"><font size="3"><font face="Times New Roman">50<p></p></font></font></span></li><li class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; mso-list: l0 level2 lfo1; tab-stops: list 72.0pt;"><span lang="EN-GB" style="mso-fareast-font-family: 宋体;"><font size="3"><font face="Times New Roman">40<p></p></font></font></span></li></ol></ol>

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关键词：有意思 Transportat Opportunity Considering Activities activities available activity concerts received

我觉得是10，因为机会成本指的是将资源用于某种用途而放弃的可用于其他用途所能获得的最大收入。现在资源是时间，joan只能去一个音乐会，他去monkey的音乐会的机会成本就是他出席patrol的音乐会所能获得的效用，所以这个机会成本是50，但是现在patrol的音乐会票是可以转让的，所获得的收益是票面价格40。所以只损失10。机会成本就是10了

50？

John愿支付50

[此贴子已经被作者于2007-12-4 15:07:45编辑过]

The opportunity cost is 10.

If Joan goes to the Artic Monkeys’concert, he will give up the consumer surplus which he can get from Snow Patrol concert. However the consumer surplus is his willingness to pay (50) minus the ticket's price (40).

我觉得是40，虽然Joan愿意为Snow Patrol支付的一个主观效用为50，但是那是在没有其他选择机会时的一个价格，而现在Joan的情况时， 如果Joan选择去Artic Monkeys’concert，她就不能去Snow Patrol，也就不用支付40元的票价。机会成本就是在选择了一个决策时，所丧失的次优决策能够给你带来的效用水平，它是你可选择的并且能够用货币计量的成本，虽然可以不用实际支付。

机会成本应该跟消费者剩余没有关系吧，不知道。

 I also hold the opinion that the opportunity cost is 40.

 For the willingness of pay of the  Snow Patrol concert and the Artic Monkeys’concert are the same--- 50, that is to say, she gets the same ulility from them.if  she gives up Artic Monkeys’concert to go to Snow Patrol concert, she has to pay 40 instead of paying nothing. So I think opportunity cost is 40.