There is a huge qualitative difference between an economy built on natural resource extraction, where the populace is a cost center, and an economy built on productive labor by the population, where increasing capabilities of the society leads to more wealth.

FORBES: Why Have The Islamic Countries Failed To Develop Even With Resources Like Oil, While Countries With No Resources Like Switzerland Have Flourished?

Scaling in the social sector means understanding the best approach to making a more meaningful qualitative difference with respect to a social issue.

FORBES: What's Your Scale For Good?

These so-called quantitative traits are under the control of a number of different genes acting in concert as opposed to qualitative traits such as human eye colour, where a difference in a single gene produces a single, sharp distinction.

ECONOMIST: A genetic game of chicken