关键词: 传统CPI指数, PCE指数, C-CPI-U指数, 数据质量

Abstract: The Consumer Price Index is a basic description of the consumer spending for official statistics, its data quality impacts the economic behavior of the public and the effectiveness of fiscal and monetary policy. This article based on the U.S. Consumer Price Index (CPI) system as the object of study, and the traditional CPI index, PCE index, C-CPI-U index in USA statistical practice were compared and analyzed, and from to improve the compiling principle, macroeconomic policy needs and operability aspect explain the reasons for the formation of USA existing consumer price index system. Finally, from experiences in the U.S. as a reference, by combining China’s CPI preparation condition at the present stage the paper put forward some recommendations to further optimize our exist consumer price index system which aiming to promote the development of China's official statistics in the field of consumer price index.

Key words: Traditional CPI Index , PCE Index, C-CPI-U Index, Data quality