Manufacturing Sector - Estimation Methodology

Sources of Data

• Census & Surveys of the NSO
  • Census of Establishments (CE)
  • Annual Survey of Establishments (ASE)
  • Quarterly Survey of Establishment (QSE)
  • Survey of Key Enterprises in Manufacturing (SKEM)
  • Integrated Survey of Households (ISH)
  • Wholesale Price Index (WPI)

• Department of Trade & Industry (DTI)
  • Survey of Manufacturing Enterprises

• NSCB - NSO
  • Input-Output Table

• Administrative Data
  • Department of Energy (DOE)
  • The Philippine Cement Manufacturers Corporation (Philcemcor)
  • Sugar Regulatory Administration (SRA)
  • Philippine Associated Smelting and Refining Corporation (PASAR)

Methodology

• GVA Quarterly Estimates

  * At Current Prices:

  where:
  GVA^q_t    = GVA at quarter q of year t
  GVA^q_t-1 = GVA at quarter q of the preceding year
  X^q_t         = production at quarter q of year t
  X^q_t-1     = production at quarter q of the preceding year

  *  At Constant Prices:

        GVA^q_t = GVA at current prices / Deflator