Topics
Series
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Food Price Index
en-NZ
Studies
Concept
Name
Upward/downward contributions
en-NZ
Label
Upward/downward contributions
en-NZ
Description
Items mentioned in the FPI release are usually those that made a large contribution to the overall movement in the FPI. An item's contribution is a combination of its weight in the index (ie its relative importance, based on its share of household spending on food) and the magnitude of price movement. For example, for two items recording the same percentage rise in price, the item with the larger weight in the FPI will have a larger contribution to the overall movement. This contribution is also referred to as points (or index points) contribution.
en-NZ