This is the first systematic discussion of the Marxian political economy of Paul Baran, Paul Sweezy, Harry Magdoff, and Samir Amin. John Foster explains their theoretical contributions and situates these in the context of on-going debates on economic theory. While orthodox economics takes account of the preeminent role of the giant, monopolistic corporation under capitalism only in passing, John Bellamy Foster's new study belongs to a distinguished tradition in Marxian social science which sees the rise of concentrated capital as the fundamental aspect of accumulation in the twentieth...