A historical experiment. In 1934, the Chrysler corporation of the United States first adopted a streamlined body design. In 1937, German design genius fernand porsche began designing cars resembling the beetle. Not only did the beetle crawl on the ground, but it also flew in the air, and its physical resistance was small. Dr Porsche maximized the merits of the beetle's appearance, making "vw" cars the representative work of streamlined cars at the time. The "golden age" of the beatles was the "golden age" of the car from the 1930s to the late 1940s. Value is the core concept that defines the existence of human beings. It is the essence of human existence and development. All human emancipation behavior, namely the essential rule (humanity) for the creation of the self and to create and eventually reached for the essence of the law in order to maintain and development of a simple statement is all human practice is for maintaining and developing the essence of self, all value form from the category, cannot be separated from this category. Values in many areas have specific forms, such as social value, personal value, economic value, legal value, etc. The existence of these values is the essential nature of the category of human beings in different fields. At the same time, because there are some conceptualized maintenance and development of human thought there is no actual physical force, such value is defined separately as nominal value. Any transaction can be seen as a contract between the two parties. The so-called transaction cost can be seen as the cost of the transaction contract. According to Mr Coase and others, a type of transaction costs arise from the accidental factors that occur when a deal is signed. These incidental factors may not be written into the contract due to the fact that they could not be foreseen in advance, or although they could be foreseen, they could not be written into the contract due to too many factors. Another type of transaction costs is the signing of contracts and the cost of monitoring and enforcing contracts. No 2 different people can be be extremely alike. One person will require to outgoing activities while the other would like those things that one can pursue in your own home. Even when looking at friends, we got to know that all the buddies that we have will also be different. Friends themselves have different tastes and very different likes. After August 1987, for example, as the dollar fell, people rushed to buy sterling, the high-yielding currency, which rose from $1.65 to $1.90 in a very short time, up almost 20%. In order to limit the rise in the pound, the UK cut interest rates for several consecutive times between may and June 1988, falling from 10% to 7.5%, with the pound falling every time it cut interest rates. But the pound began to pick up again after the bank of England was forced to raise interest rates several times as the pound weakened too quickly and inflationary pressures increased.