Bob quotes from David Ricardo to show that the classical economists understood that utility was essential to explaining market value, but then he also explains why the Marginalist Revolution was a scientific advancement.

Bob’s Journal of Libertarian Studies Article on The Labor Theory of Value: https://Mises.org/HAP462a
Human Action Podcast Episode 460, “What Does Say’s Law Really Say?”: https://Mises.org/HAP462b
David Ricardo, On the Principles of Political Economy and Taxation: https://Mises.org/HAP462c