noun
price index
An economic indicator that measures the average change in prices over time for a fixed basket of goods and services. Common examples include the Consumer Price Index (CPI) and the Wholesale Price Index (WPI).
消費者物価指数は前年比で2%上昇した。
The consumer price index rose 2% year-on-year.
政府は毎月物価指数を発表している。
The government releases the price index every month.