P1. Manufacturers and retailers usually consider gray marketing detrimental to their margin and profit, since gray markets snatch market share by offering lower prices.
P2 Under certain market conditions, gray marketing can benefit manufacturers and retailers. The favorable market condition is met when the customer base is distinctively segmented- i.e. the presence of a significant number of both price sensitive and price insensitive customers.
P3. In the presence of market segmentation, manufacturers and retailers can increase profits by charging higher prices to price insensitive customers while improving the quality of the service. This measure will most likely offset the loss of revenue from price sensitive customers.
考题：
1，问题里有一个是问根据这个研究, 对那些符合这些条件的市场应该采用怎样的策略, 我选了A, 分两种经销渠道, 一种是便宜实惠的吸引那些价格敏感的人, 另一种走高端路线吸引那些人傻钱多的.
2，What is the primary purpose of the article? To explain how gray marketing can benefit the profit and margin of manufacturers and retailers.
3，第2.3段的关系: 我选:E.第二段提出了GRAY MARKET 对商家有利的CONDITION.第3段解释怎样对商家有利
4，有个是逻辑的题目，问哪个可以削弱retailer revenue increase的结果。。
我选了个（1）越来越多顾客都变的price sensitive, and the trend will continue的选项。
（2）authorized retailer will stage a price war, because of the appearance of gray market。。。，and then the profit margin 就会下降了，
（3）讲为了提高服务，或增加广告投入因而增加了成本，导致PROFIT下降。
5，在Grey market中retailers可以怎样？关注他们该关注的客户群体，放弃Margin那部分客户群体。
6，细节题，grey marketing 起作用时应该是什么样一种情况? 定位于第二段
