主题：两个女生和一台二手电视机引来的game theory 和 auction 问题 -- Ready-Go
The literature on auction is highly
technical. You need a very good training
in mathematics (particularly real
analysis) to understand the journal articles and do your own research.
Auction is a pretty hot topic at the
moment. 3G mobile phone licence auctions
around Europe show that a good auctin
design means billions of dollars extra
revenue for the government. And Ebay gives an easy and cheap way for economists to run experiment auctions to
test economic theory.
电视2年前买的，$160,2年前就已经花出去了，不应该在记入现在的交易成本中。其实他们可以发个广告卖电视，不一定真卖，但2人可以参考买主的价格，商量出2人都接受的价格，然后a傅这个价格的1/2给b.
对经济完全是个门外汉，乱说的，方家别见笑。
所以用常识判断,会有限制条件以外的其它解决方法,而且也合理.(只不过不是题目所要探讨的命题.)
又所以茅于轼丢出七个常识性经济问题,会难倒一堆本科生.
一般是不是比较难处理。
据个极端的例子，一个人要卖他95买的386。如果他把当时买的价钱计入成本，那他还不得找块豆腐钻撞死。
Multi-variant Analysis (MVA) 也是标准的分析方式.
你的386问题是观念问题.商品价值取决于"现在值多少"而不是"当时花多少买的".也就是说当时的成本是Sunk Cost, 忘了它吧.如果这个观念用在投资股票,那可就会很惨的呢.
It is not efficient to sell the TV in
the second-hand market and divide the
money. A and B have to spend time and
energy (transaction cost) to sell it,
and if A really needs a TV, he or she
has to spend time and energy to buy
another one back. Furthermore, the
second-hand market is not liquid, there
is lots of searching and matching going
on. It is quite possible that A has to
pay a higher price to buy back the same
TV.
I think first-price auction is a good idea.
以后还会有更多的"二个女生谈经济"的系列吗?可以开个单元了.