Matéria da The Economist citando um estudo do Banco Mundial.
“The World Bank’s researchers looked at 28 examples of new technologies that achieved a market penetration of at least 5% in the developed world, and found that 23 of them went on to manage a penetration of over 50%. Once early adopters latch onto something new and useful, in other words, the rest of the population can quickly follow. The researchers then considered 67 new technologies that had achieved a 5% penetration in the developing world, and found that only six of them went on to reach 50%. That suggests that although new technologies are often adopted by a small minority of people in poor countries, they then fail to achieve widespread diffusion, so their benefits do not become more generally available.”
Ou seja, para a maior parte dos casos, é mais importante colocar professor bom dentro da sala de aula do que computador na mão de aluno. É mais importante chegar agua potável do que internet sem fio etc. O uso de novas tecnologias depende da instalação de infra estrutura antes.