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In economics, aggregation is any attempt to bypass information asymmetry by systematically amassing information about prices and other features of goods on the market. Shop bots are a commercial example of aggregation in action.

In biology the term is applied to fish, birds and insects and describes a gathering of animals of the same size and body orientation, often cruising in the same direction. See schooling.

In object-oriented programming, aggregation is a special form of association.

In television broadcasting, aggregation is the merging of several license areas into a single area, allowing competition between broadcasters.

In music, an aggregate is the full chromatic scale of twelve pitches.

See also traffic aggregation in telecommunications.

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