Technical Notes
The National Statistics Office generates various price indices, one of this is the Producer Price Index. (PPI). The PPI is generated through the results of the Producers Price Survey (PPS) conducted nationwide. The survey gathers monthly actual producer prices of selected products included in the market basket.
PPI utilizes the Paasche-type method of index computation with weights computed from the production concentration ratio of the Census of Philippine Business and Industry (CPBI)/ Annual Survey of Philippine Business and Industry (ASPBI). The weights are updated as soon as new results of the ASPBI/CPBI are available and applied at the beginning of each survey year.
Hence, the weights of the major sectors and sub-sectors for the 2009 PPI were computed from the results of the 2006 CPBI for Manufacturing Establishments of total employment of 20 and over, which is the latest census results.
Moreover, for industry classification, the 2010 PPI utilizes the amended 1994 Philippine Standard Industry Classification. There are 20 major sectors covered by the 2010 PPS with three consisting of subsectors.
Non-responding sample establishments are estimated using cold-deck imputation method. Revisions to the preliminary estimates are done upon receipt of actual reports from late respondents.
| |
(Sgd.) CARMELITA N. ERICTA
Administrator |
TABLE 1-A. PRODUCER PRICE INDEX, SEPTEMBER 2011 - OCTOBER 2011
(2000=100)
| Gainers |
Year-on-Year Growth (percent) |
| October 2011 |
September 2011
(revised) |
| |
|
Petroleum Products
|
26.7
|
31.8
|
|
Machinery Except Electrical
|
9.9
|
4.2
|
|
Basic Metals
|
9.9
|
11.5
|
|
Food Manufacturing
|
4.5
|
5.7
|
|
Rubber and Plastic Products*
|
5.6
|
5.1
|
|
Tobacco Products
|
4.5
|
4.5
|
|
Electrical Machinery
|
0.4
|
-1.8
|
|
Footwear and Wearing Apparel
|
1.0
|
0.7
|
|
Textiles
|
1.2
|
1.8
|
|
Wood and Wood Products
|
0.1
|
0.1
|
|
Publishing and Printing
|
0.0
|
0.0
|
| |
| Losers |
Year-on-Year Growth (percent) |
| October 2011 |
September 2011
(revised) |
| |
|
Transport Equipment
|
-20.8
|
-21.9
|
|
Furniture and Fixtures
|
-41.4
|
-44.0
|
|
Miscellaneous Manufactures
|
-9.1
|
-9.2
|
|
Beverages
|
-3.7
|
-3.7
|
|
Chemical Products
|
-1.7
|
-1.7
|
|
Non-Metallic Mineral Products
|
-2.1
|
-2.6
|
|
Paper and Paper Products
|
-3.0
|
0.3
|
|
Fabricated Metal Products
|
-1.7
|
-1.8
|
|
Leather Products
|
-0.6
|
0.7
|
TABLE 1-B. PRODUCER PRICE INDEX, SEPTEMBER 2011 - OCTOBER 2011
(2000=100)
| Gainers |
Month-on-Month Growth (percent) |
| October 2011 |
September 2011
(revised) |
| |
|
Machinery Except Electrical
|
4.3
|
2.4
|
|
Transport Equipment
|
0.7
|
-2.1
|
|
Furniture and Fixtures
|
4.4
|
-16.6
|
|
Electrical Machinery
|
0.1
|
1.6
|
|
Food Manufacturing
|
0.2
|
0.6
|
|
Footwear and Wearing Apparel
|
0.6
|
1.2
|
|
Chemical Products
|
0.2
|
1.1
|
|
Rubber and Plastic Products*
|
0.4
|
0.3
|
|
Tobacco Products
|
0.0
|
0.0
|
|
Publishing and Printing
|
0.0
|
0.0
|
|
Wood and Wood Products
|
0.0
|
0.0
|
|
Beverages
|
0.0
|
0.0
|
|
Fabricated Metal Products
|
0.0
|
0.0
|
| |
| Losers |
Month-on-Month Growth (percent) |
| October 2011 |
September 2011
(revised) |
| |
|
Petroleum Products
|
-0.8
|
1.3
|
|
Basic Metals
|
-0.6
|
1.3
|
|
Paper and Paper Products
|
-1.5
|
1.4
|
|
Miscellaneous Manufactures
|
-1.2
|
4.2
|
|
Non-Metallic Mineral Products
|
-0.8
|
0.9
|
|
Leather Products
|
-1.2
|
0.3
|
|
Textiles
|
0.0
|
-0.9
|
Note:
* - new sector in the 2000-based series
Sectors are ranked according to their contribution to the overall 2000-based growth rate.
Year-on-year growth rates are computed by dividing the current month index by previous year same month index less 1.
Month-on-month growth rates are computed by dividing the current month index by previous month index less 1
Source: National Statistics Office
Manila, Philippines
Page last revised: December 6, 2011
TABLE 1 Producer Price Index (PPI)