The General Theory II: Behaviour and Rationality

R. M. O’Donnell
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R. M. O’Donnell: Macquarie University

Chapter 12 in Keynes: Philosophy, Economics and Politics, 1989, pp 247-272 from Palgrave Macmillan

Abstract: Abstract This chapter focusses on the GT’s treatment of behaviour under uncertainty and its relationship to rationality. It thus bears on several crucial issues in the interpretation of the GT. Did Keynes base his major economic work on a theory of rational behaviour, or did he assume agent irrationality? What are the differences between Keynes’s treatment of uncertainty and expectations and that of Neoclassicism? What role do probabilities play in his analysis? Did he implicitly accept some version of orthodox rational economic ‘man’, or did he repudiate this concept? In seeking clarity on these issues, particular attention will be paid to both the distinctive characteristics of his approach and the manner in which these are underpinned by his philosophical framework. The relations between the TP and the GT are thus of primary concern. The existence of connections between the two works has been noted by a number of economists, Townshend appearing to be the first, in 1938. The idea has since resurfaced, implicitly and explicitly, in Shackle (1949), Harrod (1951), Leijon-hufvud (1968), Hishiyama (1969), Cochrane (1971), Minsky (1975) and Patinkin (1976a) to name but a few.2 The matter has never been pursued with much vigour, however, existing comments being restricted either to obiter dicta, or to brief treatments occasionally based on misunderstandings of Keynes’s philosophy.

Keywords: Stock Exchange; Rational Behaviour; Rational Expectation; Unknown Probability; Animal Spirit (search for similar items in EconPapers)
Date: 1989
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Persistent link: https://EconPapers.repec.org/RePEc:pal:palchp:978-1-349-07027-5_13

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DOI: 10.1007/978-1-349-07027-5_13

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