Tapping into the Fortune at the Bottom of the Pyramid

If we view the world’s population as a pyramid — with the richest people at the top, and poorest people at the broad base — it may surprise you to realize that some of the best business opportunities await those who target the bottom of the pyramid.

But that’s precisely what C K. Prahalad and other astute strategists are starting to say. The size of this largely untapped market is staggering. Four billion people live on $1,500 per year or less. Today, consumers in the developed world are largely saturated with products that meet .....