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PA R T I
Introduction
Over the years, there has been a steady stream of attempts at properly weight-
ing monetary components within a simple-sum aggregate. With no theory, however,
any weighting scheme is questionable. Recently, attention has been focused on the
gains that can be achieved by a rigorous use of microeconomic theory, aggregation
theory, and index number theory. This new approach to monetary aggregation
led to the construction of
weighted monetary aggregates
.
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These aggregates repre-
sent a viable and theoretically appropriate alternative to the simple-sum aggre-
gates. Moreover, recent research indicates that these new measures of money seem
to predict inflation and the business cycle somewhat better than more conven-
tional measures.
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