| Technical
Notes: Gross Regional
Domestic Product
Definition: Gross Regional
Domestic Product (GRDP) is the aggregate of gross value added
(GVA) of all resident producer units in the region.
Components: The GRDP includes
regional estimates on the three major sectors including their
sub-sectors namely:
I. Agriculture, Fishery and Forestry
II. Industry Sector
- Mining and Quarrying
- Manufacturing
- Construction
- Electricity and Water |
III. Service Sector
- Transport, Communication and Storage
- Trade
- Finance
- Ownership of Dwellings and Real Estate
- Private Services
- Government Services |
Data Sources
- Agriculture and Fishery - Bureau of
Agricultural Statistics (BAS), Philippine Coconut Authority
(PCA), Sugar Regulatory Administration (SRA), Philippine
Tobacco Administration (PTA), Fiber Development Authority
(FDA), National Meat Inspection Council (NMIC), National
Irrigation Administration( NIA), Fertilizer and Pesticides
Authority (FPA), National Statistics Office (NSO) and
Bureau of Fisheries and Aquatic Resources (BFAR)
- Forestry - Forest Management Bureau
(FMB) and National Statistics Office (NSO)
- Mining and Quarrying - Mines and Geo-Sciences
Bureau (MGB), Integrated Annual Report (IAR) of Mining
Firms, National Statistics Office (NSO) and Chamber of
Mines
- Manufacturing - National Statistics
Office (NSO), Sugar Regulatory Administration (SRA), Philippine
Cement Manufacturing Corporation (PHILCEMCOR), Philippine
Associated and Smelting Refinery (PASAR), Office of Energy
Affairs (OEA) and Energy Regulatory Board (ERB)
- Construction - Commission on Audit
(COA), National Economic and Development Authority (NEDA),
National Statistics Office (NSO)
- Electricity and Water - National Power
Corporation (NPC), Manila Electric Company (MERALCO),
National Electrification Administration (NEA), Metropolitan
Waterworks and Sewerage System (MWSS), Local Water Utilities
Administration (LWUA), National Water Regulatory Board
(NWRB), Rural Electric Cooperative (REC) and National
Statistics Office (NSO)
- Transport, Communication and Storage (TCS)
- National Statistics Office (NSO), Land Transportation
Office (LTO), Philippine National Railways (PNR), Light
Rail Transit Authority (LRTA), Philippine Postal Office
(PPO), Philippine Air Lines (PAL), Philippine Ports Authority
(PPA) and Department of Transportation and Communication
(DOTC)
- Trade - National Statistics Office
(NSO)
- Finance - Bangko Sentral ng Pilipinas
(BSP), National Statistics Office (NSO) and Insurance
Commission (IC)
- Ownership of Dwellings and Real Estate
- National Statistics Office (NSO), National Land Titles
and Deeds Registration Administration (NLTDRA)
- Private Services - National Statistics
Office (NSO) and National Statistical Coordination Board
(NSCB)
Government Services - Commission on Audit (COA), Department
of Budget and Management (DBM), Social Security System
(SSS) and Government Service Insurance System (GSIS)
Considerations
In using the GRDP, the following points should be considered:
- The following sectors (Manufacturing, TCS, Real Estate,
Trade and Private Services) are based on the CE and ASE
results from NSO, which becomes available every two (2)
years after the reference year. During the years when
the CE or ASE results are not yet available, other indicators
and the QSE trend are used to produce regional GVA estimates.
In the case of the TCS, subsequent adjustments are made
based on the additional indicators from administrative
data of LTO, PPA, PAL, ATO & PPC.
- The regional GVAs for each of the sub-sectors of agriculture,
fishery and forestry are estimated indirectly using the
gross value added ratio (GVAR) approach.
- For private construction, regional distribution is
based on the structure of the Building Permits data. For
public construction disaggregation by region is based
on the regional breakdown of the infra program of NEDA
and validated by the individual agencies' infra programs.
For the sub-sector of electricity and water where available
financial statements from NPC, MERALCO, REG, MWSS and
LWUA can provide the required data inputs, the production
approach is employed to estimate the regional GVAs.
- The regional distribution of resources from the BSP
factbook and Insurance Commission are used to estimate
the regional GVAs of the Finance sub-sectors.
- For ownership of dwellings, regional benchmark estimates
are obtained using the results of the latest Census of
Population and Housing (CPH) and Family Income and Expenditure
Survey (FIES). Regional data on the total floor area of
residential construction available from Building Permits
data of NSO serve as indicator for estimating the regional
distribution of the number of occupied dwelling units.
- The regional GVAs for the government services are estimated
based on the data from the Commission on Audit (COA).
Limitations
Initial compilation for GRDP was done in
1974, covering the period 1971-1974. Due to conceptual problems
and inadequate data, the series was discontinued until in
1978, when estimation of GRDP was resumed and institutionalized.
A new series emerged for 1978 up to the present.
There were different data series for GRDP
because of the inclusion of Cordillera Administrative Region
(CAR) in 1988; Autonomous Region of Muslim Mindanao (ARMM)
in 1993 and lately CARAGA (only for 1995). The following GRDP
series are available:
- 1978-1987 GRDP by Region or by Industrial Origin (Region
1-12 and NCR)
- 1988-1993 GRDP by Region or by Industrial Origin (14
Regions inclusive of CAR)
- 1993-1998 GRDP by Region or by Industrial Origin (15
Regions inclusive of ARMM)
- 1995 GRDP by region (Preliminary Estimates, 16 Regions
inclusive of CARAGA
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