请教一道OG上的逻辑题~~~

zlin0222

41.Which of the following best completes the passage
below?
When the products of several competing suppliers are
perceived by consumers to be essentially the same,
classical economics predicts that price competition
will reduce prices to the same minimal levels and all
suppliers’ pro?ts to the same minimal levels.
Therefore, if classical economics is true, and given
suppliers’ desire to make as much pro?t as possible,
it should be expected that  .
(A) in a crowded market widely differing prices will
be charged for products that are essentially the
same as each other
(B) as a market becomes less crowded as suppliers
leave, the pro?ts of the remaining suppliers will
tend to decrease
(C) each supplier in a crowded market will try to
convince consumers that its product differs
signi?cantly from its competitors’ products.
(D) when consumers are unable to distinguish the
products in a crowded market, consumers will
judge that the higher-priced products are of
higher quality
(E) suppliers in crowded markets will have more
incentive to reduce prices and thus increase
sales than to introduce innovations that would
distinguish their product from their competitors’
products

答案是C。我选的A。另外DE我也没太想明白为什么不行。哪位高手可以帮我解答下呀？谢谢啦！！

cheermeng

If :Same products perceived by consumer
Then:minimal level profits.

Not minimal level profits->make the product different from rivals

醒醒Shine

刷第四遍OG CR了。有个体会：GMAC是不支持price和profit有必然联系的，如果要承认，必须提供两者之间的逻辑链说法。

（作为金融专业本科的学生，千万小心……）

kilaspring

D：消费者以价估质，这点与classical economics is true的前提有所违背。
另外，表达上也有错误，应该表达为如果以价估质。把消费者的行为作为一个前提，而不应是作为一个结果。
E：否认创新而提高销售，貌似能说得通，但是文章中根本就没有这个意思，完全读者自己的猜测，是错的。

onlybeata

除了古典经济理论，还有厂商想要赚取更多利润的愿望。
A,E没有考虑到这种愿望，而D的出发点是顾客，跟题干都不符。

scottli889

就是说价格都一样，想增加利润，就要增加数量

wizwiz

商品长得都一样——————厂商们的价格和利润都很低很低，这样怎么赚钱嘛～
如果商品长得不一样了～～～～那这个classical economics就不起作用了～
所以选C～

leelh29

分析：这个题要我们答在这种情况下怎样才能实现利润最大化？价格已经是最低了，不能再低了，那么能改变什么？价格的最低化是因为在消费者眼里产品都一样，所以选择最低价商品，那么改变他们眼中产品的形象不久行了吗？从焦点入手解题。

queenie924

题目 A：a:当几个竞争的供应商的产品被顾客认为是same---b古典经济学预测 价格竞争将使 price减小到same level 而且 所有供应商的profits 也在 same level. ----->B：非b:如果供应商要尽可能的多获利----？

题干：（when，if 转化为充分必要） a--->b ,则 非b--->非a ，原命题--逆否命题的转化
答案：非a：供应商要让顾客相信自己的产品和别人不同。

选项：A.   同样的产品不同的价格---无法预料到顾客会买什么SALE无法预知PRICE也无法预知
.D：非b：顾客会选高价格的（价格都一样，何来高价格？）E.非b: 供应商会降价促销（价格一样，profit也一样不可能）B集合外无关：less crowded(题目讨论的是crowded)