Diffusions of mobile cellular phones in Sub Sahara Africa

It is widely believed that mobile cellular phones will play critically important roles for economic developments of countries in Sub Sahara Africa. This paper will examine the patterns of diffusion in mobile cellular phones of the Sub Sahara region as a whole and the individual countries in Sub Sahara Africa from several different perspectives: (1) its relative positions to that of fixed line phones have changed at different points in time, (2) the behavior of the ratios of the these two variables at different points in time, (3) growth patterns of mobile phone uses in individual countries in Sub Sahara Africa, (4) the observed usage patterns for the countries in the western and the southern Sub Sahara Africa compare to the countries in the central and the eastern Sub Sahara Africa, and (5) findings of the regression models with the usual explanatory variables such as GDP-PPP, fixed line phones per 100, literacy rates, PC per 100 at different points in time during the study period covered in this paper.