Click here for search results
Determinants of a digital divide in Sub-Saharan Africa : a spatial econometric analysis of cell phone coverage, Volume 1
 
Author:Buys, Piet; Dasgupta, Susmita; Thomas, Tim; Wheeler, David; Country:Africa;
Date Stored:2008/02/12Document Date:2008/02/01
Document Type:Policy Research Working PaperSubTopics:Geographical Information Systems; Population Policies; E-Business; Technology Industry; ICT Policy and Strategies
Language:EnglishRegion:Africa
Report Number:WPS4516Collection Title:Policy Research working paper ; no. WPS 4516
Volume No:1  

Summary: Most discussions of the digital divide treat it as a "North-South" issue, but the conventional dichotomy doesn't apply to cell phones in Sub-Saharan Africa. Although almost all Sub-Saharan countries are poor by international standards, they exhibit great disparities in coverage by cell telephone systems. Buys, Dasgupta, Thomas and Wheeler investigate the determinants of these disparities with a spatially-disaggregated model that employs locational information for cell-phone towers across over 990,000 4.6-km grid squares in Sub-Saharan Africa. Using probit techniques, a probability model with adjustments for spatial autocorrelation has been estimated that relates the likelihood of cell-tower location within a grid square to potential market size (proximate population); installation and maintenance cost factors related to accessibility (elevation, slope, distance from a main road, distance from the nearest large city); and national competition policy. Probit estimates indicate strong, significant results for the supply-demand variables, and very strong results for the competition policy index. Simulations based on the econometric results suggest that a generalized improvement in competition policy to a level that currently characterizes the best-performing states in Sub-Saharan Africa could lead to huge improvements in cell-phone area coverage for many states currently with poor policy performance, and an overall coverage increase of nearly 100 percent.

Official Documents
Official, scanned versions of documents (may include signatures, etc.)
File TypeDescriptionFile Size (mb)
PDF 26 pagesOfficial version*0.29
TextText version**
How To Order

* The official version is derived from scanning the final, paper copy of the document and is the official,
archived version including all signatures, charts, etc.
** The text version is the OCR text of the final scanned version and is not an accurate representation of the final text.
It is provided solely to benefit users with slow connectivity.



Permanent URL for this page: http://go.worldbank.org/6CL606XB40