何为deadweight loss?~

是 否 +2 论坛币

k人 参与回答

经管之家送您一份

应届毕业生专属福利!

求职就业群

赵安豆老师微信：zhaoandou666

经管之家联合CDA

送您一个全额奖学金名额~ !

立即领取

感谢您参与论坛问题回答

经管之家送您两个论坛币！

+2 论坛币

如题~

扫码加我 拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

分享0 收藏20 回帖

关键词：deadweight Deadweigh Weight weigh Eight loss deadweight

中文译名：无谓损失。即相对于最优（first-best）状态而言，交易各方都无法获得但却因为某一方的策略行为导致的损失。典型的垄断厂商下的哈博格三角就是拉。

我不确定，上节课prof刚刚讲的Ch还没仔细看书

我们讲的是由于税收引起的demand surplus 和 supply surplus 损失

加了条件的市场下生产者剩余和消费者剩余之和比完全竞争市场下少的部分。

deadweight loss

In terms of perfect competition, an individual firm as a price taker in the market, faces a constant demand curve and produces at price level where, MC=MR=P*. Therefore Social welfare(SW)=consumer surpls(CS)+Producer surpls(PS), the Parento Efficency is Achieved. (P*= the market equilibrium price, where Demand=Supply)

Assume that a perfect competition market has been monoplised over night. the monoplist faces a download slopping demand curve, which is the aggregate demand for the perfect competition market. so MR=<P*. In order to profit maximise, the monoplist will understandablely produce under condition of MC=MR, but in this case, demand>supply, P*<P^(Monolist's price). This causes deadweightloss(DWL), as Parento Effiecncy cannot be sustained, as monoply will never be allocatively efficent and very rarely be produvtively efficent. So SW=CS+PS+DWL

But this is not always the case, as the first degree of discrimination/price discriminiation is allowed, the SW will be sustained because the monoplist can charge different prices given every single unit of demands, i.e. SW=PS, where CS=0.

as an economist, we don't care who is benefited, as long as social welfare is sustained, we won't be worried

http://staff.bath.ac.uk/ecsjgs/Teaching/Industrial%20Organisation/Handouts/03%20-%20Homogenous%20Goods/Handout%203a.pdf

This is handouts from a lecuture, if you want read Page 3, which shows above arguments in terms of diagrams and maths formula, which may help to understand

deadweight loss?~

the deadweight loss?~ is paint to the thing like that :"sadjsdajkghk,bhio hap5n hastrhgj[sp jaskdugtjsla

sdhfgkjy jjgierhhasa hsaigh sdfgvg asjifgh8is jifgh0pwe sahdfioeww jsdaoiguj heifghaw8e sdfgewj "

无谓损失。the fall in total surplus that results from a market distortion, such as a tax

楼上讲的都很好～

哦，懂了