![Table A . April 2021](/sites/default/files/betafiles/producer-price-survey/164565_pps0421ta.png)
Year-on-Year
The Producer Price Index (PPI) for manufacturing continued to decrease at an annual rate of -3.0 percent in April 2021. This decline was slower than the annual drop of -3.4 percent in March 2021. In April 2020, the PPI also registered a downturn with an annual rate of -5.0 percent. (Table A)
The downtrend in the PPI in April 2021 can be attributed to the contraction in the indices of 15 industry divisions led by manufacture of computer, electronic, and optical products which posted an annual decrement of -17.5 percent. In contrast, manufacture of coke and refined petroleum products, with an annual increase of 11.6 percent, led the six industry divisions that recorded positive annual growths while printing and reproduction of recorded media had zero annual growth rate. (Tables A-1, and 1)
Month-on-Month
Month-on-month, the PPI dropped at a monthly rate of -0.2 percent in April 2021, following a 0.1 percent increase in March 2021. In April 2020, the PPI decreased by -0.7 percent. (Table A)
Ten industry divisions recorded negative monthly growth rates in April 2021 led by manufacture of fabricated metal products, except machinery and equipment with monthly decrement of -3.7 percent. On the other hand, the PPI of 11 industry divisions posted monthly increments, with manufacture of basic metals posting the highest monthly increase of 2.2 percent. Monthly growth rate of printing and reproduction of recorded media remained the same. (Tables A-2 and 1)
DENNIS S. MAPA, Ph.D.
Undersecretary
National Statistician and Civil Registrar General
- Introduction
- Method of Index Computation
![Formula 1](/sites/default/files/betafiles/producer-price-survey/164565_tn1a_0.png)
![Formula 2](/sites/default/files/betafiles/producer-price-survey/164565_tn1b_1.png)
![Formula 3](/sites/default/files/betafiles/producer-price-survey/164565_tn2_8.png)
![Formula 3](/sites/default/files/betafiles/producer-price-survey/164565_tn3_6.png)
- Computation of Growth Rates
Year-on-year growth rates are computed by dividing the current month’s index by the index of the same month of the previous year less 1.
Month-on-month growth rates are computed by dividing the current month’s index by the previous month’s index less 1.
- Imputation and Revision
Imputation is done for sample establishments that are in operation during the reference period but with no received response during the release date. Results are revised accordingly when the actual data are received and these revisions are reflected in the next release.
- Industry Coverage
Starting with the January 2013 reference month, PPI utilizes the 2009 Philippine Standard Industrial Classification (PSIC) to classify sectors and industries. Selected industry groups of the 2009 PSIC were grouped to form the 22 industry divisions of the 2021 PPS. These are presented in the table below.
2009 PSIC CODE |
INDUSTRY DESCRIPTION |
---|---|
C10 |
Manufacture of food products * |
C11 |
Manufacture of beverages |
C12 |
Manufacture of tobacco products |
C13 |
Manufacture of Textiles |
C14 |
Manufacture of wearing apparel |
C15 |
Manufacture of leather and related products, including footwear |
C16 |
Manufacture of wood, bamboo, cane, rattan articles, and related products products* |
C17 |
Manufacture of paper and paper products |
C18 |
Printing and reproduction of recorded media |
C19 |
Manufacture of coke and refined petroleum products |
C20 |
Manufacture of chemical and chemical products* |
C21 |
Manufacture of basic pharmaceutical products and pharmaceutical preparations |
C22 |
Manufacture of rubber and plastic products* |
C23 |
Manufacture of other non-metallic mineral products* |
C24 |
Manufacture of basic metals* |
C25 |
Manufacture of fabricated metal products, except machinery and equipment* |
C26 |
Manufacture of computer, electronic, and optical products* |
C27 |
Manufacture of electrical equipment* |
C28 |
Manufacture of machinery and equipment except electrical* |
C29, C30 |
Manufacture of transport equipment* |
C31 | Manufacture of furniture |
C32, C33 | Other manufacturing |
* Industry divisions categorized further into industry groups
See more at the Producer Price Survey (PPS) main page.