This collection offers a critical assessment of the published works of Piero Sraffa, one of the leading economists of the twentieth century, and their legacy for the economics profession. The topics covered explore Sraffa’s interpretation of the classical economists; his theory of value and distribution; his critique of partial and general neoclassical equilibrium theory; his focus on the problem of capital; and his critique of Hayek’s monetary overinvestment theory of the business cycle. Specific issues investigated include intertemporal general equilibrium theory and the capital problem; the probability of reswitching; Ricardo, Malthus, and the corn model; and the meaning and implication of the capital controversy. Among the contributors are many of the world’s leading students of Sraffian economics, including Nobel Laureate Paul Samuelson, Christian Bidard, Edwin Burmeister, John Eatwell, Pierangelo Garegnani, Samuel Hollander, Heinz Kurz, Lynn Mainwaring, Neri Salvadori, Bertram Schefold, and Ian Steedman.