Tractatus Logico-Philosophicus
Sraffa and Wittgenstein influenced each other deeply. While Wittgenstein made his famous turn from the "Tractatus Logico-Philosophicus" to the "Philosophical Investigations" wherein he jettisoned the previous idea that the world comprised an atomistic set of propositional facts for the notion that meaning derives from its use within a holistic self-enclosed system. Analogously, Sraffa was rebutting the neoclassical paradigm which was similarly atomistic and individualistic. While there are disputes about how to interpret Sraffa none dispute Sraffa's influence.