Published by 11:00 a.m. (ET) on the day of the CPI release, the sticky price index sorts the components of the consumer price index (CPI) into either flexible or sticky (slow to change) categories based on the frequency of their price adjustment.
Sticky-Price CPI Growth Increased — April 17, 2015
On a core basis (excluding food and energy), the sticky-price index rose 2.4 percent in March, and its 12-month percent change was 2.0 percent.
The flexible cut of the CPI—a weighted basket of items that change price relatively frequently—increased at an annualized rate of 5.1 percent in March. The flexible CPI is still 4.2 percent below year-ago levels.
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Source: Federal Reserve Bank of Atlanta
Core Sticky CPI
Core Flexible CPI