What does bottom of the pyramid mean?

bottom of the pyramid meaning in Law Dictionary

In business economics, the base of the pyramid could be the biggest, but poorest sociology-economic team. In global terms, here is the 2.5 billion those who go on less than $2.50 each day. The expression

bottom of the pyramid meaning in Business Dictionary

An economic term discussing the largest although poorest socio-economic group constituting a lot more than 2.5 billion people that live on less than $2.50 a-day.