0 a person or organization that collects information from the internet pages of other businesses and puts it on a single website
To finally construct these applications, they provide discoverers to locate suitable widgets, interpreters, aggregators and services.
For other aggregators the path could depend on further parameters.
Ignoring the dependence of aggregators on the underlying regime is no more or less appealing than ignoring the dependence of decision rules on the regime.
Individuals consume goods across the spectrum of differentiated products using a constant elasticity of substitution aggregator.
Individual choice is critical; control of information rests with citizens, not with data aggregators or data users.
Treating the aggregator as constant yields a set of misconstructed data if significant structural changes in the economy occur.
In addition, at any setting of the degree of risk aversion, the tracking ability depends on substitutability among the components of the aggregator function.
In aggregation theory, index numbers are judged relative to their ability to track the exact aggregator functions nested within the economy's structure.
