Prepared for Conference on "Sraffa’s Production of Commodities by Means of Commodities After Twenty Five Years." Aug. 24-27, 1985, Florence, Italy.
Also posted is this paper as it appeared in Krishna Bharadwaj and Bertram Schefold, Ed. Essays On Piero Sraffa: Critical Perspectives On The Revival Of Classical Theory. London, England: Routledge, 1992, pages 362-371.
The third posting is this paper with edits Minsky made apparently after the paper's publication.
Minsky, Hyman P. Ph.D., "Sraffa and Keynes: Effective Demand in the Long Run" (1985). Hyman P. Minsky Archive. Paper 321.