消费在收入允许下需要的商品功能集合记住Ω，并且在短时间内Ω部存在漂移，即不会发生改变，只要一个商品使得消费者认识到其商品功能集合Ζ落在Ω内，即Ζ其才会购买； 现对厂商在生产商品之前是否研究消费者需求和商品被被生产出来之后是否宣传作以比较分析 ;如果厂商生产前没有研究需求而进行生产的情况，最终此商品的功能集合为A 1 ，厂商生产前没研究需求而进行生产的情况，商品的功能集合为A 2 ，此时假设A 1 与A 2 有相同的势，即阿列夫零（A 1 ）=阿列夫零（A 2 ）。 如果A 1 消费者认为A 1 = A 1 1 ∪ A 1 2 ，A 1 1 ∩ A 1 2 =0， 前者满足其需求，而后者不满足其需求，即A 1 1 属于Ω，A 1 2 不属于Ω；同样如果A2被消费者认为其有A 2 1 与A 2 2 购成，前者满足其需求，而后者不满足其需求，即A 2 1 属于Ω，A 2 2 不属于Ω；如果把功能集合的成本泛函为C i ，其把有用的功能空间映射到一个数集上，即C i :A→C,此时厂商研究消费者者相对不研究消费者需要多花费成本可以表示为C i =C i (A 1 1 /A 2 1 )；因为有一部分如不是落在消费的需要的功能集合内，假若要购买了消费也得为那一部分不需要的功能点赋价，故消费者不会购买，就需要厂商在把产品生产出来之后做宣传工作。 因为对于消费者的认知，A 1 应有四部分构成，即生产出的商品原本是符合其功能需求的那部分商品功能集合最终也被其识别为符合其功能集合，记住A 1 11 ，原本是不符合其功能需求的那部分商品功能集合最终也被其识别为符合其功能集合，记住A 1 21 ，原本是符合其功能需求的那部分商品功能集合最终也被其识别为不符合其功能集合，记住A 1 12 ，原本是不符合其功能需求的那部分商品功能集合最终也被其识别为不符合其功能集合A 1 22 ，记住；商品生产出来之后没研究市场需求的做宣传的这四部分为：A 2 11, A 2 21， A 2 12, A 2 22， ，一般来说前两部分不用再做宣传，因为其都是落在消费者所需要的功能集合 Ω的，而只需要对A i 12 和A i 22 （i=1,2）两部进行宣传，并且有C i (A i 12 )/阿列夫零（A i 12 ) C i (A i 22 )/阿列夫零（A i 22 )(i=1,2),则此时记成本函数为Cf,前者的成本为C1=C f （ A 1 12 ）+C f （ A 1 22 ），后者的成本为C2=C f （ A 2 12 ）+C f （ A 2 22 ） 则不研究市场需求却宣传所多花费的成本记住ΔC=C1-C2,则一般来说要使得这两种情况下的商品全部销售出去，应有以下关系成立 C i (A 1 1 /A 2 1 )= ΔC。 一 般完全不宣传的情况下注重已经知道的消费者的显需求，而完全宣传下的注重不知道的消费者的隐需求； 对于厂商来说，即使在生产前不研究市场的需求，而随意构造产品，只要对产品做大势宣传，则也能使产品全部销售出去，这与不做宣传工作但在生产产品之前研究市场需求是等价的 ；在这两种情况下还基于两种假设， 宣传的前提条件是产品生产出来之后厂商必须知道消费者的需求功能集合和此商品的功能集合，研究市场需求的前提条件是在生产之前必须知道消费者需求功能集合，并且这个集合不存在漂移，即在消费者偏好没改变之前进行生产。
BSI Consumer Public Interest Network Vacancy for CPI Coordinator for CPI Construction group Are you an architect, builder, construction expert, surveyor, an ergonomist with a special interest in buildings, or just someone who knows a lot about building design? Or maybe you work for a housing association? What about ethical and environmental considerations – are you enthusiastic about sustainability? And what about issues to do with accessibility for the very young, the old and disabled people in public and private houses? Do they all have the same needs? By catering for one group, will you make it difficult for another? If these sorts of challenges are right up your street, you could well find your niche with us. This is about joining a group of creative people who want to get things right and make things easier for those who live in or use buildings – the end user. Through the standards development process, we represent ordinary consumers — our current priorities are safety, security, sustainability and accessibility. We are looking for someone to coordinate the activities of the group of volunteers and experts in our CPI Construction group of the BSI Consumer Public Interest Network (CPIN). CPIN consists of three main groups and all the members are volunteers who are based outside of BSI : – the CPI-SAC, a strategy group, comprising senior representatives from relevant organizations (e.g. Citizens Advice , Consumer Focus , Trading Standards , Which? ); – Coordinators for each of the topic areas (currently ten); – CPI Reps (who sit on committees and report back), background experts, and a Disabled Experts Reference Group ( approximately 70 in total) . Each of our CPI Coordinators has up-to-date background and specific knowledge relating to their area and good external contacts. They also have good people skills, advising and liaising regularly with their Reps, relevant BSI staff, and the CPI Unit. The small CPI Unit at BSI manages the whole Network – they are staff with considerable experience of the standards and consumer world. The Chair of the CPI Network is Lynn Faulds Wood , consumer champion and former presenter of Watchdog. If you’re currently working in any area connected to Construction (or have done in the past), you’ll have come across those particular standards . The sorts of projects in which the CPIN is involved include ones on spectator facilities , tree safety, domestic shutters and blinds, drinking water and water reuse, security of buildings, sheltered housing, and the design life of buildings. New work in development includes managing flood risk. An event of special interest to the CPI Construction group this year will be the 2011 plenary meeting of t he ISO Committee on consumer policy (ISO/COPOLCO), hosted in London by BSI on 23-27 May. The theme of the workshop (on 24 May) will be Homes for tomorrow – building through standards .The plenary will also celebrate 60 years of involvement in standards by our BSI CPIN. The CPI Coordinator role attracts a small honorarium (presently 3,000 p.a.) and, of course, your travel, accommodation and subsistence expenses are paid, when you go to meetings for us in the UK and abroad. The time commitment is approximately 30 days p.a. (including c.12 days total of meetings). Please email the CPI Unit if you would like to apply: consumer@bsigroup.com For more information about us, see: www.bsigroup.com/Consumers
标签: 消费者
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