 Accordingly, Cass is rightly honored, together with Tjalling Koopmans and Frank Ramsey, as one of the fathers of dynamic macroeconomic analysis.The original papers from Cass's thesis were

The "Optimum growth..." paper was the culmination of a long line of research (beginning with Frank Ramsey's pioneering research in the 1920s) on modeling economic growth.The literature found expression in the post-war period in the work of Robert Solow at MIT and Hirofumi Uzawa at Stanford, not only as a theory of growth, but also as a tool for understanding the macroeconomy.