Price Statistics Compilation in 196 Economies: The Relevance for Policy Analysis
By Francien Berry, Brian Graf, Michael Stanger, Mari Ylä-Jarkko The consumer price index (CPI) is a key economic indicator used to gauge inflation, adjust wages, pensions, and social benefits. The producer prices index (PPI) is used for forecasting and deflating GDP estimates. Both indexes are used by the Fund, policymakers, and researchers for global, regional, and domestic surveillance. In this context, the paper evaluates the soundness of the indexes by assessing four major criteria: frequency of updating the weights,...