National Development and Reform Commission, Chen Jianguo, the 24th Industrial Coordination Division in the "2011 China Automotive Consumer Forum", pointed out that the city car traffic , resource consumption and the contradictions ?between the restriction can not be simple to solve, but through differential taxation and other economic means to resolve, or both hurt consumers, but also hurt the industry. Beijing to implement the purchase of auto policy, consider some of the central cities that follow in Beijing. In this regard, Chen Jianguo said that China and Singapore, Hong Kong and other non-industrialized countries and different areas, if the arbitrary limit consumption, despite the short-term quick, but the economic damage will be very serious. In an interview with Chen Jianguo, "Economic Information Daily," an interview that taxation is reasonable to set the key to guide car consumption. Automotive consumer to buy, possess, use three stages, should be tax cuts in the purchase link in with aspects of appropriate tax, increased use of part of the taxes, so that consumers are willing to buy a car, the courage to buy a car, save the car, in order to achieve environmental and economic win-win situation. Which of the following is the advantage of implementation of the differential tax ? （ ）