piar: Price Index Aggregation
Most price indexes are made with a two-step procedure, where
period-over-period elemental indexes are first calculated for a collection
of elemental aggregates at each point in time, and then aggregated according
to a price index aggregation structure. These indexes can then be chained
together to form a time series that gives the evolution of prices with
respect to a fixed base period. This package contains a collections of
functions that revolve around this work flow, making it easy to build
standard price indexes, and implement the methods described by
Balk (2008, ISBN:978-1-107-40496-0), von der Lippe (2001,
ISBN:3-8246-0638-0), and the CPI manual (2020, ISBN:978-1-51354-298-0)
for bilateral price indexes.
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