1.1 Introduction
Luigi Pasinetti is with no doubt a leading scholar, probably the most influential, of the second generation of the Cambridge School of Keynesian Economics, both because of his achievements and for his early involvement with the direct pupils of John Maynard Keynes.1 Pasinetti, with Geoff Harcourt2 and a few others, belongs to that generation that was not directly involved with Keynes but that was in direct contact with his pupils. The first generation of the School includes, apart from John Maynard Keynes himself, in alphabetical order, his direct pupils Richard Kahn, Nicholas Kaldor, Joan Robinson and Piero Sraffa. To these we may add Richard Goodwin, who arrived in Cambridge in 1950, four years after Keynesâs death, as a pupil of Joseph Schumpeter. This impressive group of scholars started initially, at least to some degree, within the mainstream of their time. But soon âthey all moved well and truly outside it, attempting to create [âŚ] a revolutionary alternativeâ.3
But Pasinetti has gone further, and may be considered a real âsystem-builderâ. Basically, he was unsatisfied with the line of research initiated in Cambridge in the 1950s and much developed in the 1960s, concerning the disaggregated analysis of the economic system, carried out in particular by David Champernowne, Richard Goodwin, Piero Sraffa, Richard Stone (and Wassily Leontief in the United States). In his words:
Both the macro-dynamic growth models and input-output analysis impressed me at the time; but they left me profoundly dissatisfied when I tried to use them in order to understand what was going on in economic systems with a very high degree of dynamism, i.e. of technical progress. (Pasinetti 1981, p. xi)
This led Pasinetti in his 1962 Cambridge Ph.D. thesis to put forward his groundbreaking contribution in the field of âstructural economic dynamicsâ. In few words, Pasinettiâs defines the conditions for an economic system to reach and maintain full labour employment and full capacity utilization when the system is subject to structural change caused by a differentiated and continuously changing technical progress of the productive sectors, and to a continuously changing composition of consumersâ demand (Engelâs law). In order to solve this dynamic multi-sector model, Pasinetti later on devised two new tools of analysisâthe vertical integration approach and the vertically hyper-integration sectorsâwhich has led a number of authors to rightly label him a âtool-makerâ as opposed to the term âtool-userâ.
It is beyond doubt that when Pasinetti arrived at Gonville and Caius College in Cambridge in September 1956 and was matriculated as a graduate student, he was about to start a life-long association with the Cambridge School of Keynesian Economics. How did his âpassional critical attitudeâ start? Again, in his words:
It was Richard Goodwin who skillfully directed my very first timid steps into research work. And later, when I began to write a great deal, Richard Kahn very patiently read, criticised and commented every single note I submitted to him. Through Kahn I came in contact with that unique mixture of radicalism, wisdom and social concern that was the distinct mark of Keynesâs environment. Through Goodwin I was stimulated to open up my intellectual curiosity and interests towards tools of analysis that came from outside. At the same time, I also benefited from long discussions, and often from daily conversations, with Nicholas Kaldor, always bubbling with new ideas, Joan Robinson, always hard as a rock on her theoretical conceptions, and Piero Sraffa, the real master of all critics. It is from them that I learnt that passionate critical attitude which has been the conditio sine qua non for starting and pursuing an investigation of this type. (Pasinetti 1981, p. xiv)
One indication that Pasinetti since the mid-1980s has been widely considered a leading figure of the Cambridge School of Keynesian Economics was that he was asked to give the address at the memorial service of the late Lord Richard Kahn, delivered in the Chapel of Kingâs College in Cambridge, of which both had been official fellows, on October 21, 1989. He was also requested to write official biographies of Joan Robinson (1903â83), Piero Sraffa (1898â1983), Nicholas Kaldor (1908â86), Richard Kahn (1905â89), Richard Stone (1913â92) and Richard Goodwin (1913â96). Some of these personal and scientific biographies have been republished by Pasinetti and discussed in Pasinetti (
2007,
2010). We may say that in this precious work Pasinetti is rivalled only by Geoff Harcourt, who for a long period has been responsible for the obituaries of
The Economic Journal. On October 21, 1989, at the service in honour of Richard Kahn, Pasinetti stated that:
This is the third time, over a short span of years, that the congregation assembles in this Chapel to commemorate, and reflect upon the life of, a major contributor to that intellectual breakthrough that has become known in the world of economics and politics as âthe Keynesian Revolutionâ. (Pasinetti 1989, p. 1)
Pasinetti was referring to the previous commemorations of Joan Robinson and Nicholas Kaldor; he went on to say that
If one adds that another memorial service, shortly after that of Joan Robinson, was held in Cambridge, though in another Chapel, for yet another close associate of Keynes, Piero Sraffa, one cannot resist the impression that todayâs ceremony concludes a whole historical phase, almost an era, in the recent history of economic thought. This group of Cambridge economists has been protagonist of one of those extraordinary and unique events in the history of ideas that decisively pushed ahead and created a break with the past. (Pasinetti 1989, p. 1)
Pasinetti, as we shall see below, was one of the major contributors to the controversies on the measurement of technical progress, on capital theory, on income distribution and on the theory of value that were fought out between Cambridge, England, and Cambridge, Massachusetts, during the âragingâ 1950s, 1960s and 1970s, with âupshotsâ in the 1980s and 1990s and even into the twenty-first century. As pointed out in Baranzini and Harcourt (1993, pp. 3â4), the battle was, as we shall see, won by Cambridge, England,4 but paradoxically the losing side was awarded, over the years, a number of Nobel Prizes (while significantly none of the above-mentioned Cambridge UK economists were awarded one, apart from Sir Richard Stone and, to a certain extent, Amartya K. Sen). Notwithstanding the strength and the high analytical rigour of such a group of thinkers, as time passed, the âKeynesianâ and later the âpost-Keynesianâ schools have progressively lost ground (at least until the great crash of 2007 when all, at least for some time, became new Keynesians), while the marginalist school has taken over and, numerically at least, has become the dominant school in most of the Western world. In a certain sense the first âKeynesian Revolutionâ, led by John Maynard Keynes himself, Richard F. Kahn and Joan V. Robinson, had been able to âcreate a break with the pastâ and to convert most of the leading economists and fellow politicians of the 1930s, 1940s and 1950s; but when the time was ripe for a continuation of the âKeynesian Programmeâ to issues concerning the long run, the majority of economists did not follow. The âKeynesian Programmeâ suffered a halt and its leading members found themselves besieged mainly in Cambridge, England. To this specific point, Pasinetti (2007, 2010) has recently returned.
Pasinetti has an extraordinary clarity of mind and vision, so he has been able to carry out a remarkably unified research programme, one which encompasses a great number of strands within its scope. Because of the clarity and simplicity of his vision, unsympathetic critics have sometimes taken him to task; and this is not surprising for a promoter of four scientific controversies. Among these critics, we may mention, in chronological order: Robert Solow (1959, 1970, 2009, 2012), Frank Hahn (1964), James Meade and Frank Hahn (1965), Maurice Allais (1965a), Robert Dorfman (1965), David Levhari (1965), James Meade (1966), Paul Samuelson and Franco Modigliani (1966a, b), Christopher Dougherty (1972), James Mirrlees and Nicholas Stern (1973), Domenico Mario Nuti (1974), Giuseppe Campa (1975), Joseph Stiglitz (1975), John Hicks and Samuel Hollander (1977), Christopher Bliss (1986, 2010), Florian Fleck and Claus-Michael Domenghino (1987, 1990), Paul Samuelson, indirectly (1991), Edmond Malinvaud (1995), William Baumol (2009, 2012) and Moshe Syrquin (2012). They have often confused clarity of vision, the focus on fundamental, central, conceptual points, with undue simplification.