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|Born||(1898-08-05)5 August 1898|
|Died||3 September 1983(1983-09-03) (aged 85)|
|Alma mater||London School of Economics|
John Maynard Keynes
Paul A. Samuelson
 Early lifeHe was born in Turin, Italy, to a wealthy Italian Jewish family, to Angelo and Irma Sraffa. His father was a Professor in commercial law and later dean at the Bocconi University in Milan. Despite being raised to a Jewish family, he later on became an agnostic. Sraffa studied in his town and graduated at the local university with a work on inflation in Italy during and after World War I. Notably, his tutor was Luigi Einaudi, one of the most important Italian economists and later a president of the Italian Republic.
From 1921 to 1922 he studied in London at the London School of Economics. In 1922, he was appointed as Director of the provincial labour department in Milan, then as Professor in Political economy first in Perugia, and later in Cagliari, Sardinia. In Turin he met Antonio Gramsci (the most important leader of Italian Communist Party). They became close friends, partly due to their shared ideological views. He was also in contact with Filippo Turati, perhaps the most important leader of Italian Socialist Party, whom he allegedly met and frequently visited in Rapallo, where his family had a holiday villa.
In 1925, he wrote about returns to scale and perfect competition, underlining some doubtful points of Alfred Marshall's theory of the firm. This was amended for British readers and published in 1926 as The Laws of Returns under Competitive Conditions.
 Major worksIn 1927, Sraffa's yet undiscussed theory of value, but also his friendship with Antonio Gramsci, a risky and compromising endeavor in the context of the Italian fascist regime, considering Gramsci had previously been imprisoned, (Sraffa had brought him the material, literally pens and paper, with which Gramsci would write his Prison Notebooks), brought John Maynard Keynes to prudently invite Sraffa to the University of Cambridge, where the Italian economist was initially assigned a lectureship.
That Sraffa hated lecturing is normally explained by his shyness. But perhaps he declined teaching an economic theory he found wanting. So, he stopped collaborating in the making of Keynes' General Theory as Keynes used a subjective propensity to consume. After a few years, Keynes created ex novo for Sraffa the charge of Marshall Librarian.
Sraffa joined the so-called "cafeteria group", together with Frank P. Ramsey and Ludwig Wittgenstein, a sort of informal club that discussed Keynes's theory of probability and Friedrich Hayek's theory on business cycles. In 1939, Sraffa was elected to a Fellowship at Trinity College.
 Ricardo's works and correspondenceJohn Eatwell written of Sraffa's work on Ricardo:
- [Sraffa's] reconstruction of Ricardo's surplus theory, presented in but a few pages of the introduction to his edition of Ricardo's Principles, penetrated a hundred years of misunderstanding and distortion to create a vivid rationale for the structure and content of surplus theory, for the analytical role of the labor theory of value, and hence for the foundations of Marx's critical analysis of capitalist production.
 Sraffian economicsSraffa's Production of Commodities by Means of Commodities was an attempt to perfect Classical Economics' theory of value, as originally developed by David Ricardo and others. He aimed to demonstrate flaws in the mainstream neoclassical theory of value and develop an alternative analysis. In particular, Sraffa's technique of aggregating capital as "dated inputs of labour" led to a famous scholarly debate known as the Cambridge capital controversy.
Economists disagree on whether Sraffa's work refutes neoclassical economics. Many post-Keynesian economists use Sraffa's critique as justification for abandoning neoclassical analysis and exploring other models of economic behavior. Others see his work as compatible with neoclassical economics, as developed in modern general equilibrium models, or unable to determine a long-period position, just like the Walrasian approach.
Nonetheless, Sraffa's work, and particularly his interpretation of Ricardo and his Production of Commodities by Means of Commodities (1960), is seen as the starting point of the Neo-Ricardian school in the 1960s. His approach there has been described as serving "to help judge Ricardo's editor and to illuminate the unity in [his] scientific vision, from before 1926 until death in 1983."
 Personal connectionsAs stated above, Sraffa is known also for his close friendship with Italian Marxist thinker Antonio Gramsci and for being instrumental in securing Gramsci's Prison Notebooks from the Fascist authorities after the latter's death in 1937. Norman Malcolm famously credits Sraffa with providing Ludwig Wittgenstein with the conceptual break that founded the Philosophical Investigations, by means of a rude gesture on Sraffa's part:
Wittgenstein was insisting that a proposition and that which it describes must have the same 'logical form', the same 'logical multiplicity'. Sraffa made a gesture, familiar to Neapolitans as meaning something like disgust or contempt, of brushing the underneath of his chin with an outward sweep of the finger-tips of one hand. And he asked: 'What is the logical form of that?'In the introduction to Philosophical Investigations, Wittgenstein mentions discussions with Sraffa over many years and says: "I am indebted to this stimulus for the most consequential ideas in this book".
Sraffa was described as a very intelligent man, with a proverbial shyness and a real devotion for study and books. His famous library contained more than 8,000 volumes, now partly in the Trinity College Library. A popular anecdote claims that Sraffa made successful long-term investments in Japanese government bonds that he bought the day after the nuclear bombing on Hiroshima and Nagasaki. Another version of this is that Sraffa bought the bonds during the War, when they were trading at distressed prices, as he was convinced that Japan would honour its obligations (Nicholas Kaldor pages 66–67).
In 1972, he was awarded an honorary doctorate by Sorbonne, and in 1976 he received another one from Madrid's Complutense university.
- Sraffa, Piero, 1926, "The Laws of Returns under Competitive Conditions", Economic Journal, 36(144), pp. 535–50.
- _____, 1960, Production of Commodities by Means of Commodities: Prelude to a Critique of Economic Theory. Cambridge University Press. Preview.
- _____ and M.H. Dobb, editors (1951–1973). The Works and Correspondence of David Ricardo. Cambridge University Press, 11 volumes. Online at the Online Library of Liberty.
 Further reading
- Steve Keen, Debunking Economics: The Naked Emperor of the Social Sciences (2001, Pluto Press Australia) ISBN 1-86403-070-4
- Jean-Pierre Potier (1991). Piero Sraffa, Unorthodox Economist (1898-1983): A Biographical Essay (1898-1983: a Biographical Essay). ISBN 978-0-415-05959-6. http://www.amazon.com/gp/reader/0415059593/ref=sib_fs_top?ie=UTF8&p=S00E&checkSum=8fY3bILg1RprQTrG157uSRuZF%2Bwa8dIsvSKfM%2Fy0Eyo%3D#reader-link.
- Alessandro Roncaglia. "Piero Sraffa". pp. 22-23. http://digamo.free.fr/sraffaronca.pdf. Retrieved 24 July 2012. "Sraffa liked walks and bike rides. In Cambridge, he always moved around by bike. He used to get up late in the morning and work late into the night. In Trinity as well as when associated with King’s, he regularly dined in the college. As I noticed when he invited me to dinner at Trinity, he took care to arrive after supper was served, so as to skip the benedicite prayer (he was agnostic, with a leaning for atheism)."
- The participants of the Symposium 1930 in the Economic Journal were more concerned with how increasing returns can be made compatible with competition than with what are the consequences of increasing returns in the real world. Hicks (1939, The Foundations of Welfare Economics, pp. 696 – 712 in Economic Journal, IL, December 1939) concluded that Sraffa’s view has destructive consequences for the major part of economic theory.
- G. C. Harcourt, ‘Sraffa, Piero (1898–1983)’, Oxford Dictionary of National Biography, Oxford University Press, 2004.
- John Eatwell (1984). "Piero Sraffa: Seminal Economic Theorist." Science and Society, 48(2), pp 211-216. Reprinted in Piero Sraffa: Critical Assessments, J. Wood J. C. Wood, 1995, v. 1, pp. 74-79.
- Fabio D'Orlando (2005). "Will the Classical-type Approach Survive Sraffian Theory?", in Journal of Post Keynesian Economics, 27(4), pp. 633-654
- Paul A. Samuelson ( 2008). "Sraffian economics." The New Palgrave Dictionary of Economics 2nd Edition. Abstract.
- * John Eatwell and Carlo Panico (1987 ). "Sraffa, Piero." The New Palgrave: A Dictionary of Economics, v. 3, pp. 445–52.
- Norman Malcolm. Ludwig Wittgenstein: A Memoir. pp. 58–59. http://eh.net/lists/archives/hes/sep-1999/0034.php.
- Profile of Sraffa at The New School
- Piero Sraffa Archives homepage at Trinity College, Cambridge. Contains an online catalogue of Sraffa's personal and professional papers.
- Piero Sraffa - Production of commodities
- Piero Sraffa by Alessandro Roncaglia