e WPI, which is available on a weekly basis, continues to be the most popular measure of
headline in ation in India. ere are, however, four Consumer Price Indices (CPIs) that are spe-
ci c to di erent groups of consumers. e commodity basket for these indices is derived on the
basis of group-speci c consumer expenditure surveys, and weights to each commodity are pro-
portionate to its expenditure. WPI is an economy-wide index covering 435 commodities. Weights
of the commodities are derived based on the value of quantities traded in the domestic market.
It is, therefore, the most comprehensive measure of econom ...
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