Like most of the developed countries, France's car market also belongs to the mature market, tend to be saturated, most new car sales are no longer a first-time buyers of consumer is bought, is more of a used car. Subject to regional economy, the cost of living, and the influence of cultural background, etc, the French are more keen to sta domestic car, in French, so we will find that their vehicle seems to is not match with the national economic development level, and it is precisely the characteristics of these European developed countries have in common, they did not imagine the high to the requirement of cars, more practical. Psa Peugeot Citroen sold 51,188 cars in France in 2014, down 2.2% from a year earlier, according to data from the auto industry. Sales at Renault also fell 0.4 per cent year on year to 37,898 units. In addition, Volkswagen, ford, Toyota and most other car companies suffered declines in France in 2014, and France's current car market is not expected to sell well. By transferring ownership and control of data, the entire society's passive consumers will be active participants. With the tools to audit the supply chain, labor security, fair trading, and organic production will all be validated. We can replace advertising terms with proof and replace trust with auditability. Modern economy, the interest rate as the price of money, not only restricted by many factors in the economic and social, and changes in interest rates to have a great impact on the economy as a whole, as a result, modern economists are studying the interest rate decision problem, pay special attention to the relationship between the variables and the balance of the economy as a whole, the interest rate decision theory has experienced the classical interest rate theory, Keynes's interest theory, interest rate in loanable funds theory and is-lm analysis as well as the contemporary evolution of dynamic interest rate model, the development process. Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials.