- Introduction
The Monthly Integrated of Selected Industries (MISSI) is one of the designated statistical activities undertaken by the National Statistics Office to provide flash indicators on the performance of growth-oriented industries in the manufacturing sector. The survey gathers monthly data on employment, compensation, production, net sales, inventories and capacity utilization.
Beginning with the January 2012 MISSI, the monthly report for the survey will be released earlier, that is, 45 days after each reference month instead of the 55 days.
The indicators generated from the 2012 MISSI are Value of Production Index (VaPI), Volume of Production Index (VoPI), Value of Net Sales (VaNSI), and Volume of Net Sales (VoNSI). However, the VoPI and VoNSI are derived indicators utilizing the 2012 Producer Price Index as deflator.
- Method of Index Computation
The MISSI utilizes the Laspeyres-type method of index computation where the weights are computed from the value of production of the Census of Philippine Business and Industry (CPBI).
For the 2012 MISSI index series with base year of 2000, the weights of the major sectors and sub-sectors were computed from the results of the 2000 CPBI for manufacturing establishments with average total employment of 20 and over. The weights are computed from the value of products sold plus change in inventories.
The formulas in the computation are as follows
- Industry Coverage
The industry coverage of the 2012 MISSI conforms with the amended 1994 PSIC groupings. There are 20 major sectors as shown below with 10 further disaggregated into sub-sectors.
1994 PSIC CODE INDUSTRY DESCRIPTION 15 except 155 Food Manufacturing* 155 Beverages 16 Tobacco products 17 Textiles* 18,174 and 192 Footwear and wearing apparel 191 Leather products 20 Wood and wood products* 21 Paper and paper products 22 Publishing and printing 23 Petroleum products* 24 Chemical products* 25 Rubber and plastic products* 26 Non-metallic mineral products* 27 Basic metals* 28 Fabricated metal products 29 and 30 Machinery except electrical* 31 and 32 Electrical machinery* 34 and 35 Transport equipment 36 Furniture and fixtures 33, 37 and 39 Miscellaneous manufactures Note: * - Major sectors categorized into sub-sectors