Page 331 - NIEN GIAM 2017

- Step 5: Calculating production index of the whole industry

The production index of industry is the weighted average index of
representing VSIC 1-digit industries in the whole industry.

Fomula:
 I  W
qN
I q   1 W qN 1 qN 1

Where:

I : Production index of the whole industry;
q
I qN1 : Production index of VSIC 1-digit industries;
W qN1 : Weight of VSIC 1-digit industries. Weight of VSIC 1-digit
industries is the value added at current price in 2010.

The index of industrial shipment of manufacturing is the index
comparing the rate of industrial shipment between reference time and
base time.

The base time of the index of industrial shipment of manufacturing
are the average month of base year, the previous period and the same
period of last year.

The index of Industrial Shipment of manufacturing reflects the
situation of changing in industrial shipment (increase, decrease) of each

commodity, groups of commodities, each industrial activity or in general.
The index of Industrial Shipment of manufacturing is calculated for
only enterprise sector, not individual sector.

Calculation
The process of calculation is done in 4 steps:

- Step 1: Calculating shipment index of each commodity

Formula:

T
i tn  1 n  100
T n 0

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