Chained-type index

Index that is based on the linking (chaining) of indexes to create a time series. Annual chain-type Fisher indices are used in BEA’s national income and product accounts (NIPAs) whereby Fisher ideal price indices are calculated using the weights of adjacent years. Those annual changes are then multiplied (chained) together, forming the chain-type index time series. Related terms: chained-dollar estimate, current-dollar estimate.