Published online by Cambridge University Press: 05 March 2012
In 1971, Joan Robinson entered into a debate with theAmerican neoclassical economist C.E. Ferguson in the CanadianJournal of Economics over the efficacy of theneoclassical theory of capital in light of the Cambridge Controversiesraging at the time. Recent archival evidence from the Martin BronfenbrennerPapers at Duke Archive has uncovered a heretofore lost reply Ferguson wroteto Robinson on or around September 1971, three months before his death. Thatreply is published for the first time as an Appendix to this article.Uncovering this reply, as well as correspondence between Ferguson,Bronfenbrenner, and Solow, shines a light into the American neoclassicalcamp of the late 1960s and early 1970s as the early phase in the CambridgeControversies was drawing to a close.