morishima's three-volume work reinterpreting and synthesizing economic ideas in the major writings of david ricardo, karl marx, and leon walras, now largely forgotten, represents one of the high points of the radical political economy of the 1970s new left in north america. his intense interest in general equilibrium theory, classical political economy, and capitalism drove this work. based on lse lectures, these books worked towards the accommodation of von neumann's 1937 multi-sectoral growth model to a general equilibrium model. considering the work of these theorists to be ricardian, his three books worked to show that the modification of them along von neumann lines elucidates the theoretical similarities and differences between the positions.