The idea that global companies can do good and do well at the “bottom of the pyramid”—that is, among the poor populations of developing countries—has generated excitement among corporations, governments, and NGOs in recent years. But most of the resulting initiatives by multinationals have missed the very poor, the 2 billion people in places like Haiti and Bangladesh who live on less than two dollars a day and have been virtually ignored by the corporate world and cut off from the global marketplace. The multinationals seem not to have noticed the examples of Telenor and Digicel, innovative mobile phone companies that have found opportunities to earn profits and simultaneously improve local economic landscapes by serving the very poor.

A version of this article appeared in the May 2008 issue of Harvard Business Review.