Reis, Ricardo; Watson, Mark W - C.E.P.R. Discussion Papers - 2007
. The model identifies a measure of “pure” inflation: the common component in goods’ inflation rates that has an … equiproportional effect on all prices and is uncorrelated with relative price changes at all dates. The estimates of pure inflation and … pure inflation accounts for 15-20% of the variability in overall inflation, so that most changes in inflation are …