Carl Menger von Wolfensgrün was an influential Austrian economist who laid the foundational principles for the Austrian school of economics. His work was instrumental in shifting economic thought toward a more subjective understanding of value, moving away from classical labor-based theories.
His most significant contribution was the development of the marginal theory of value. By demonstrating that the value of a good is determined by its marginal utility to the consumer, he provided a solution to the long-standing paradox of value. This insight became a cornerstone of modern microeconomics and established his legacy as a pioneer in the field.