International Food Policy Research Institute, 2004, Malawi - Poverty Headcount.Online Links:
The map projection used is Transverse Mercator.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.002048
Ordinates (y-coordinates) are specified to the nearest 0.002048
Planar coordinates are specified in meters
The horizontal datum used is D_GRS_1980.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
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Coordinates defining the features.
Coordinates defining the features.
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Coordinates defining the features.
This coverage was developed by Todd Benson of the International Food Policy Research Institute from a shapefile of the 1998 Census Enumeration Areas that was prepared for the Malawi National Statistical Office.
+1-202-862-5667 (voice)
+1-202-467-4439 (FAX)
t.benson@cgiar.org
The aggregated EAs were developed for a poverty mapping analysis. This analysis used detailed household data from the 1997-98 Malawi Integrated Household Survey (IHS) to develop models of household welfare that employed only those explanatory variables that could also be found in the 1998 Census. These models were then used with the Census data to make small-area estimates of welfare and poverty across the country. The method used has been shown elsewhere to provide quite reliable estimates of welfare and poverty for populations as small as 500 households - hence the 500 household population threshold used to construct the aggregated EA geography. (More recent analyses undertaken after the aggregated EA geography had been completed, suggests that the 500 household threshold may be overambitious, and the poverty mapping estimation method should only be employed with somewhat larger populations of 1,000 to 20,000 in size.) Welfare, poverty, and inequality estimates were made for the population in each aggregated EA. The analysis presented here then attempts to explain the spatial patterns in estimated poverty prevalence using a range of other spatial data.
Malawi National Statistical Office, 1998, Malawi NSO 1998 Census enumeration area maps.
International Food Policy Research Institute, 20051201, Poverty Headcount.Online Links:
Each unit is uniquely identified using the SEQNO field or the AGGREA field which includes the SEQNO and DISCODE information. The administrative hierarchy within which the aggregated EA is located is the Traditional Authority (TA & TACODE) and district (DISTRICT & DISCODE). The other attribute information comes from a range of sources: 1) the results of the poverty mapping exercise to compute poverty, welfare, and inequality estimates for each aggregated EAs, 2) a range of variables considered as explanatory variables of poverty that were extracted from a wide range of spatial datasets for Malawi, and 3) the results of a geographically weighted regression analysis of the determinants of poverty prevalence in the rural aggregated EAs of Malawi.
No formal positional accuracy tests were undertaken.
No formal positional accuracy tests were undertaken.
None
No formal logical consistency tests undertaken. This is a coverage derived from an earlier 1998 Malawi census enumeration area boundary coverage that was digitized from 1:50,000; 1:25,000, and 1:10,000 scale maps and was subjected to quite rigorous auditing of both the spatial structure and the attributes for each polygon.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- This is an international public good. The only expectation on accessing it for use is that acknowledgement be made of the following institutions when results are presented: National Statistical Office Government of Malawi PO Box 333 Zomba, Malawi & International Food Policy Research Institute 2033 K Street, NW Washington, DC 20006 USA This coverage was developed by Todd Benson of the International Food Policy Research Institute from a shapefile of the 1998 Census Enumeration Areas that was prepared for the Malawi National Statistical Office.
- Use_Constraints:
- This is an international public good. The only expectation on its use is that acknowledgement be made of: National Statistical Office Government of Malawi PO Box 333 Zomba, Malawi & International Food Policy Research Institute 2033 K Street, NW Washington, DC 20006 USA
+1-202-862-5667 (voice)
+1-202-467-4439 (FAX)
t.benson@cgiar.org
Aggregated enumeration areas for rural Malawi - determinants of poverty prevalence analysis
Distributor assumes no liability for the use of this data product.
| Data format: | ARCE (version 9.0) shp Size: 13.326 |
|---|---|
| Network links: |
<http://gisweb.ciat.cgiar.org/povertymapping/> |
Send e-mail request to receive shapefile by ftp.
+1-202-862-5667 (voice)
+1-202-467-4439 (FAX)
t.benson@cgiar.org
