Nepal - Quarterly Survey of Manufacturing Production and Price Indices 2010-2011

The sample design for the present quarterly survey of manufacturing production and price indices are based on the census value added provided by the CME 2006/07.

Selection of four-digit NSIC industry group:
All the four-digit NSIC industry groups contributing 0.5 percent or more to the total census value added are included in the frame. Accordingly, 23 four-digit NSIC industry groups are selected.

Selection of the manufacturing establishments:
Selection of the manufacturing establishments within the each selected four-digit NSIC industry group has been categorized in two ways. In one hand, only five largest establishments are selected with certainty that have concentration ratio 80% or more within the same industry group. On the other hand, for those having concentration ratio less than 80%, the five largest establishments with certainty as well as the other sampled establishments are selected for the sample depending upon share of concentration ratio occupied by them. The selection is based on the probability proportional to size (PPS) sampling technique.

Selection of the commodities:
The commodities are selected within each four-digit NSIC industry group on the basis of the share to the total value of shipment as provided by manufacturing census 2006/07. As per this criterion 44 manufacturing commodities are selected under the 23 four-digit NSIC industry group.


Minor deviation is due to instability of some of the sampled establishments


Approximaterly 85 percent


The weight of the quarterly survey of manufacturing production and price indices is based on total census output of CME 2006/07. Weight has been assigned at two stages. At the first stage it has been assigned in four-digit NSIC industry group and at the second stage, the weight of the particular four-digit NSIC industry groups are redistributed among the selected commodities within that particular four-digit NSIC industry group. The redistribution of the weight at the commodity level is based on their share on total value of shipment within that particular four-digit NSIC industry group.