Page 374 - NIEN GIAM 2017

marked and consumers can bargain, the consumer price is the final price
of goods paid by consumers in market after negotiation with sellers.

Formula for computing average consumer price is as follows:

 M ,K  1 ( / N )
P    (P i , j ,k 
)
i
 j , 1 k  1 

Where:

i P : Average price in the reference month of item i;

P i,j,k : Surveyed price of item i at place j, period k;

K: Number of survey periods of item i in the reference month,
K = 1÷3;

k: The survey period of item i, k = 1÷K;

M: Number of survey places of item i in the reference month;

j: Survey place of item i in period k in reference month, j = 1 ÷M;

N: Number of samples of item i’s price collected in the reference
month, N= M x K.

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