Key statistical concept The standardised Consumer Confidence Indicators (CCI) are measures comparable across countries. Comparability has been achieved by careful selection of national indicators, and by smoothing, centring, and amplitude adjusting these series. The OECD has decided to fix 100 as mean of the OECD Standardised CCI. Therefore 100 represents the long term average, or normal situation, and is not attached to a specific base year.
For more information on the standardisation of the CCI, click here.
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