Technical Notes on the Monthly Integrated Survey on Selected Industries

  • Introduction

The Monthly Integrated Survey of Selected Industries (MISSI) is one of the designated statistical activities undertaken by the Philippine Statistics Authority with the objective of providing 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 from manufacturing establishments.

The indicators generated from the 2018 MISSI at the 3/4-digit 2009 Philippine Standard Industrial Classification (PSIC) are Value of Production Index (VaPI), Volume of Production Index (VoPI), Value of Net Sales Index (VaNSI), Volume of Net Sales Index (VoNSI) and capacity utilization of industries. The VoPI and VoNSI, however, are derived indicators utilizing the 2018 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 2018 MISSI index series with base year of 2000, the weights of the major industries and sub-industries 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:

 

Value of Production Index (VaPI)

The formula above was modified to a chained index formula to allow for changes in the composition of the sample establishments under each sub-industry, as follows:

 

Major Industry Level without corresponding sub-industries (2/3-digit PSIC)

The formula was modified to a chained index formula to allow for changes in the composition of the sample establishments under each sub-industry, as follows:

Major Industry Level with corresponding sub-industries (2/3-digit PSIC)

Total Manufacturing (1-digit PSIC)

The same methodology is used to compute the Value of Net Sales Index (VaNSI)

 

Volume of Production Index (VoPI)

Sub-Industry Level (3/4-digit PSIC)

 

Major Industry Level without sub-industry (2/3-digit PSIC)

 

 

Total Manufacturing (1-digit PSIC)

 

The same methodology is used to compute the Volume of Net Sales Index (VoNSI)

 

  • Industry Coverage

    The 2018 MISSI utilizes the 2009 PSIC to classify major industries and sub-industries. Twenty major industries of the 2009 PSIC were formed to comprise the industry coverage of the 2018 MISSI. These are presented in the table below.

    2009 PSIC CODE

    INDUSTRY DESCRIPTION

    C10

    Food manufacturing *

    C11

    Beverages

    C12

    Tobacco products

    C13

    Textiles*

    C14, C152

    Footwear and wearing apparel

    C151

    Leather products

    C16

    Wood and wood products*

    C17

    Paper and paper products

    C18

    Printing ang reproduction of recorded media

    C19

    Petroleum products*

    C20,C21

    Chemical products*

    C22

    Rubber and plastic products*

    C23

    Non-metallic mineral products*

    C24

    Basic metals*

    C25,C3311

    Fabricated metal products

    C262,C275,C28,

    C263,C268,C3312,C332

    Machinery except electrical*

    C261,C264,C27,

    C29301,C3314,C332

    Electrical machinery*

    C29 except C29301,

    C30,C3315

    Transport equipment

    C31

    Furniture and fixtures

    C265,C266,C267,C32, C3313,C3319

    Miscellaneous manufactures

                                                 Note: * - Major industries categorized into sub-industries

     

 

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