Bryan, Michael F.; Cecchetti, Stephen G.; Wiggins, II, … - 2021
superior estimates" of core inflation,' which we define as a long-run centered moving average of CPI and PPI" inflation. We … find that trimming 9% from each tail of the CPI price-change distribution from the tails of the PPI price …-mean-square error) than the standard mean CPI Moreover, the efficient estimators are robust to sample period and to the definition of …