I grew up in Nairobi, Kenya, and so my research on M-PESA, the cell phone-based payment system that has spread like wildfire across the country, strikes a deeply personal chord. Most of my research on this has been in collaboration with William (Billy) Jack at Georgetown who lived in Kenya himself for a few years. We both experienced the frustrations of what in the US would be the simplest of money transactions, and felt that M-PESA could fulfill a need of many Kenyans.
In practice, the adoption of M-PESA has been faster than we, and most other observers, had anticipated. In four short years it has been widely embraced by Kenyans, and has already had a big impact on the lives of people I’ve known for years. I did my dissertation on the adoption of farming technologies in Africa, and it’s still a subject that interests me a great deal. I’ve looked at the implementation of seed technologies in Kenya, and the diffusion of improved coffee farming practices in Rwanda. It often takes decades for these kinds of technologies to fully penetrate a population.