Page 346 - Nien giam 2018
P. 346

- Step 1: Calculating Inventory index of each commodity

                             Formula:

                                                             q
                                                        i Kn    Kn 1   100
                                                             q Kn 0

                             Where:
                             i : Inventory index of commodity n;
                              Kn
                             q Kn1 : Quantity of Inventory commodity n at reference time;

                             q Kn0 : Quantity of Inventory commodity n at base time.
                             - Step 2: Calculating Inventory index of VSIC 4-digit industries

                             Formula:

                                                                i  h
                                                      I       Kn    Kn
                                                                 h Kn
                                                       KN
                                                         4
                             Where:
                             I Kn4 : Inventory index of VSIC 4-digit industry;
                                                                  th
                             i : Inventory index of commodity n   in VSIC 4-digit industries;
                              Kn
                             h : Weight of commodity n.
                               Kn
                             Weight  of  commodity  is  the  value  of  average  inventory  of
                        commodity at base year of 2010 (average of the beginning and the end of
                        2010).

                             - Step 3: Calculating inventory index of VSIC 2-digit industries

                             Formula:

                                                              I    h
                                                     I       KN 4   KN 4
                                                                 h KN 4
                                                      KN
                                                        2
                             Where:
                             I KN2 : Inventory index of VSIC 2-digit industry;

                             I KN4 : Inventory index of VSIC 4-digit industry;
                             h KN4 : Weight of VSIC 4-digit industry.




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