关键词: CPI, 扫描数据, 数据采集, RYGEKS指数

Abstract: The rapid development of global information technology and the information reform of source data in statistics department put forward to the higher requirement to the present data collection in CPI. However, the problem may be solved with the emergence of the scanner data. Comparing with traditional data collection, scanner data has remarkable advantages, especially in reducing costs and burden, as well as offering a substantial reduction of the risk of manual collection errors. But this is a big challenge to the present calculation method of statistics index because of the high frequency and mass about scanner data. At present, different countries make use of diverse methods in scanner data with CPI and the new RYGEKS index maybe has a broader prospects. In this paper, the authors made a comparative study in order to provide a theoretical basis to make use of scanner data in China.

Key words: CPI, Scanner Data, Data Collection, RYGEKS Index