5  Persistence is estimated as the sum of autoregressive coefficients of the inflation series of the relevant items; a coefficient of over 0.5 is considered to be an indication of persistence. 6  “The Price of Protein”, Inaugural Address at the Special Conference in honour of Dr. Kirit Parikh at IGIDR, Mumbai, October 26, 2010.
4  BIS central bankers’ speeches  International price pass-through While the persistence of inflation on protein items has increased, it still has a relatively smaller share in overall WPI inflation. What matters more for the overall inflation trajectory is the nonfood manufactured products inflation which has a higher weight of 55.0 per cent in the WPI.