This revolutionary work taught the world how to systematically distinguish between risk and uncertainty, randomness with unknowable probabilities, in order to a... » 

This revolutionary work taught the world how to systematically distinguish between risk and uncertainty, randomness with unknowable probabilities, in order to accurately and properly ascertain a venture's potential profitability. Knight's methodology served as the foundation of the Chicago School of Economics. Dover unabridged republication of the edition published by Houghton Mifflin in 1921. «