Price collection index computation 

CPI

The CPI is the measure of inflation. It makes it possible to estimate, between two given periods, the variation in the general level of prices of goods and services consumed by households on French territory. It is a synthetic measure of price changes at constant quality.

The CPI plays a triple role

1- Economic: it makes it possible to monitor, month by month, inflation. The CPI is also used as a deflator of many economic aggregates (consumption, income, etc.) to calculate changes in volume or real terms ("in constant euros").

2- Socio-economic: the CPI, published in the Official Journal every month, is used to index numerous private contracts, alimony, life annuities and also to index the Smic.

3- monetary and financial: for international comparison purposes, price indices have been harmonised between national statistical services under the coordination of Eurostat. The harmonised indices of consumer prices (HICPs) thus obtained do not replace national CPIs. In the context of the European Central Bank's price stability objective, the HICP is the main indicator for the conduct of monetary policy in the euro area. In the case of France, the CPI and the HICP have fairly similar trends, reflecting their methodological proximity. In addition, since September 1998, inflation-indexed bonds (in this case, the national CPI) have been issued by the French Treasury.

Synthesis

Monthly