Introduction; G.Chiodi & L.Ditta PART I: REACTIONS Book Reviews of Production of Commodities by Means of Commodities ; E.Bellino PART II: ECONOMICS Sraffa's Prices; S.N.Afriat Sraffa after Marx: An Open Issue; R.Bellofiore The Classical 'Surplus' Approach and the Theory of the Welfare State and Public Pensions; S.Cesaratto Sraffa 1926 and Sraffa 1960: An Attempt to Bridge the Gap; S. Nisticò Savings, Investment and Capital in a System of General Intertemporal Equilibrium: An Extended Comment on Garegnani with a Note on Parrinello; B.Schefold Commentary - 'A Reply to Schefold'; S.Parrinello Beyond Capitalism: Sraffa's Economic Theory; G.Chiodi Notes on Early Development Economics' Story and its Relation to Sraffa's Contribution; L.Ditta PART III: PHILOSOPHY Sraffa: Notes on Moralizing, Money and Economic Prudence; P.Edwards What Wittgenstein got from Sraffa; B.McGuinness PART IV: MATHEMATICS Some Mathematical Remarks on Sraffa's Chapter I; P.Maroscia Some Observations on Sraffa and Mathematical Proofs; M.Lippi Commentary; N.Salvadori On the Collaboration between Sraffa and Besicovitch: The 'Proof of Gradient'; H.D.Kurz & N.Salvadori Sraffa's Economics in Mathematical Modes; K.V.Velupillai