为什么要开展价格指数基期轮换？国家统计局回应

Group 1 - The National Bureau of Statistics released the Consumer Price Index (CPI) and Producer Price Index (PPI) data based on 2025 as the new base year, marking the first data release after the base year rotation [1] - The base year rotation is an essential foundational work for compiling price indices, aligning with international practices to adapt to changes in the structure of transactions in production, circulation, and consumption [1] - CPI and PPI undergo base year rotation every five years in China, with the new indices starting from 2026 based on the 2025 base year [1] Group 2 - CPI reflects the price level changes of goods and services consumed by residents over a certain period, using a representative "fixed basket" of goods and services to observe overall price changes [2] - The consumer structure is evolving with economic development, necessitating timely adjustments to the CPI's "fixed basket" to accurately reflect current consumption patterns, such as the inclusion of electric power for new energy vehicles [2] - The CPI base year rotation involves adjusting the "fixed basket" and the price comparison base year to enhance the representativeness of the price index and more accurately reflect market price changes [2]