G-Econ Philippines - Description of Methodology

1. Political Boundaries:

← Philippines lies in the southeast of Asia, between latitudes 4 and 21 N and longitudes 116 and 127 E. The country is surrounded by the Pacific Ocean. It is comprised of 7,107 islands, with the biggest being Luzon, then Mindanao and Visayas in between. The Philippines has a very extensive coastline stretching 34,600 km. The total land area is estimated to be about 300,000.3 Sq. Km.

← The country is divided into 16 regions comprising 77 provinces and 63 cities, with the National Capital Region – Metro Manila – as the country’s business and government center.

2. Data Sources:

Population:

Area, population and density data for the 16 regions of the Philippines were obtained from the publication “1996 Philippine Statistical Yearbook," published by the Republic Of Philippines, National Statistical Coordination Board.

RIG’s:

The file philippines_provinces containing information regarding longitude, latitude, RIG province, grid area and ZPop was obtained from the g-econ server. Arc View program was also used to calculate the RIG’s of all the 16 regions of the Philippines. RIG’s obtained from the g-econ server and calculated through Arc View program were comparable.

GDP:

GDP data for all the 16 regions of the Philippines were obtained from the publication “1996 Philippine Statistical Yearbook," published by the Republic Of Philippines, National Statistical Coordination Board.

Methodology:

“ GDP by province” methodology: 2

First the grid area figures were converted into square kilometers using 1 square mile = 2.59 square kilometers. Then, the sub cell population was computed using the formula [RIG * grid area * population density], and re-scaled the resulting sub cell population to fit the 1990 total population. Sub cell GDP was calculated using the formula [sub cell GDP = [income per capita * 1990 sub cell population], where income per capita = [total GDP/Population], and aggregated the sub cell values to the cell level using the "collapse" command in Stata. Finally, cell GDP was re-scaled to fit the 1990 National GDP of the county and re-scaled further to fit the 1990 World Bank GDP (Constant 1995 US $).

4. Summary:

Geographical units for rescaling economic data 16 Geographical units for economic data 16 Geographical units for GPW population 1557 Grid Cells 83

Major Source for Economic Data:

GDP Republic Of Philippines, National Statistical Coordination Board. "1996 Philippine Statistical Yearbook."

Prepared By: Qazi T. Azam Date: May 6, 2004 Data File Name: Philippines_Calc_Qa_061405 Upload File Name: Philippines_Upload_Qa_061405