(Consumer Price Index, CPI) - , , , ( , , , , ..).
. Pi (0) - i- () ( ), a Pi (t) - t (), wi - , ( 1),
I = Σ wi Pi (t) / Pi (0).
, , , .
, , 19000 57000 80% . 44,1% , 55,9% - . ( , ), CoreCPI, (CPI EX FOOD&ENERGY).
CPI , . - , CPI, CoreCPI. , 0,2 , .
CPI -:
- () , ( foods&energy 50%), ( foods&energy 6%);
- 6 - 9 ;
- , .
. 10.1. ,