Economic Dynamics, Trade and Growth pp 107-151 | Cite as

# Harrod and the ‘Time-lag Theories of the Cycle’

## Abstract

In all his writings on dynamics, Harrod was eager to stress the points of departure of his own conception from the alternative approaches to the study of economic change. At an early stage he disapproved of the psychological theories of the cycle; in *The Trade Cycle* he criticized the ‘time-lag theories of the cycle’, particularly Robertson’s lagged relationship between income and saving; he rejected Lundberg’s method of period analysis, and subsequently refuted Hicks’s definition of dynamics as requiring variables to be dated. Finally, from 1939 onwards, he concentrated his efforts in trying to emphasize the difference between his approach and the new orthodoxy in dynamics represented by Ragnar Frisch’s notion, which was quickly gaining widespread acceptance among economists^{1}. The range of Harrod’s arguments was as broad as the spectrum of his critical targets: he countered the merits of instantaneous vs. period analysis; he compared lags to ‘frictions’ and claimed that they are of secondary importance for a proper explanation of the cycle and indeed misdirect attention from its ‘true causes’; he stressed the irrelevance of lags to the analysis of equilibrium movement, and proposed a definition of dynamics based on the presence of a rate of growth among the unknowns to be determined in the fundamental equation.

## Keywords

Trade Cycle Dynamic Theory Economic Journal Economic Dynamics Imperfect Competition## Preview

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## References

- Baumol, W J. (1948), ‘Notes on some Dynamic Models’,
*Economic Journal*LVIII, December, pp. 506–521.CrossRefGoogle Scholar - Baumol, W J. (1949), ‘Formalisation of Mr. Harrod’s Model’,
*Economic Journal*LIX, December, pp. 625–629.CrossRefGoogle Scholar - Besomi, D. (1995), ‘From
*The Trade Cycle*to the “Essay in Dynamic Theory”. The Harrod-Keynes Correspondence, 1937–1938’,*History of Political Economy*27: 2, pp. 309–343.CrossRefGoogle Scholar - Besomi, D. (1996), An Additional Note on the Harrod-Keynes Correspondence’,
*History of Political Economy*28: 2, pp. 281–294.CrossRefGoogle Scholar - Besomi, D. (1996a), ‘Introduction to “An Essay in Dynamic Theory”: 1938 Draft by Roy E. Harrod’,
*History of Political Economy*28: 2, pp. 245–251.CrossRefGoogle Scholar - Besomi, D. (1997), ‘Statics and Dynamics in Harrod’s
*Trade Cycle*’,*Review of Political Economy*9:2 April: 1.Google Scholar - Besomi, D. (1997a), ‘Roy Harrod and Traditional Theory’,
*European Journal of the History of Economic Thought*4(1), Spring.Google Scholar - Besomi, D. (1998), ‘Failing to Win Consent: Harrod’s Dynamics in the Eyes of his Readers’, this volume.Google Scholar
- Frisch, R. (1933), ‘Propagation Problems and Impulse Problems in Dynamic Economics’, in
*Economic Essays in Honour of Gustav Cassel*, pp. 171–205.Google Scholar - Frisch, R. (1936), ‘On the Notion of Equilibrium and Disequilibrium’,
*The Review of Economic Studies*, 3, Feb., pp. 100–105.CrossRefGoogle Scholar - Goodwin, R. M. (1951), ‘The Nonlinear Accelerator and the Persistence of the Business Cycle’,
*Econometrica*19.1, January, pp. 1–17.CrossRefGoogle Scholar - Harrod, R. F. (1931), ‘The Law of Decreasing Costs’,
*Economic Journal*, XLI, Dec., pp. 566–576.CrossRefGoogle Scholar - Harrod, R. F. (1934), ‘Doctrines of Imperfect Competition’,
*Quarterly Journal of Economics*, 48, May, pp. 442–470.CrossRefGoogle Scholar - Harrod, R. F. (1934a), ‘The Expansion of Credit in an Advancing Community’,
*Economica*, NS 1, August, 287–299.CrossRefGoogle Scholar - Harrod, R. F. (1934b), ‘Rejoinder to Mr. Robertson’,
*Economica*, NS 1, November, 476–478.CrossRefGoogle Scholar - Harrod, R. F. (1936),
*The Trade Cycle. An Essay*, Oxford: At the Clarendon Press.Google Scholar - Harrod, R. F. (1937), ‘[Review of]
*Studies in the Theory of Economic Expansion*[by E. Lundberg]’,*Zeitschrift für Nationalökonomie*, Band 8: 5, August, pp. 494–498.Google Scholar - Harrod, R. F. (1938), ‘Scope and Method of Economics’,
*Economic Journal*, XLVIII, Sept., pp. 383–412.CrossRefGoogle Scholar - Harrod, R. F. (1939), ‘An Essay in Dynamic Theory’,
*Economic Journal*XLIX, March pp. 14–33.Google Scholar - Harrod, R. F. (1948),
*Towards a Dynamic Economics*, London: Macmillan.Google Scholar - Harrod, R. F. (1952),
*Economic Essays*, London: Macmillan.Google Scholar - Harrod, R. F. (1953), ‘Comment [to Pilvin]’,
*Quarterly Journal of Economics*LXVII(4), November, 553–559.CrossRefGoogle Scholar - Harrod, R. F. (1955), ‘Les Relations entre l’Investissement et la Population’,
*Revue Économique*, 6(3), May, 356–367.Google Scholar - Harrod, R. F. (1956),
*Foundations of Inductive Logic*, London: Macmillan.Google Scholar - Harrod, R. F. (1957), ‘[Review of]
*Introduction to Keynesian Dynamics*, by K. K. Kurihara’,*Annals of the American Academy*, 313, September, pp. 192–194.Google Scholar - Harrod, R. F. (1959), ‘Domar and Dynamic Economics’,
*Economic Journal*LXIX, September, pp. 451–464.CrossRefGoogle Scholar - Harrod, R. F. (1959a),
*The Prof. A Personal Memoir of Lord Cherwell*, London: Macmillan.Google Scholar - Harrod, R. F. (1960), ‘Second Essay in Dynamic Theory’,
*Economic Journal*LXX, June, pp. 277–293.CrossRefGoogle Scholar - Harrod, R. F. (1962), ‘A Reply to Mr. Bilkey’,
*Economic Journal*LXXII, December, pp. 1009–1010.CrossRefGoogle Scholar - Harrod, R. F. (1963), ‘Themes in Dynamic Theory’,
*Economic Journal*VXXIII, September, pp. 401–421.CrossRefGoogle Scholar - Harrod, R. F. (1968), ‘What is a Model?’, in J. N. Wolfe (ed.),
*Value, Capital and Growth: Papers in Honour of Sir John Hicks*, Edinburgh: Edinburgh University Press, pp. 173–191.Google Scholar - Harrod, R. F. (1970), ‘Harrod after Twenty-One Years: A Comment’,
*Economic Journal*LXXX, September, pp. 737–741.CrossRefGoogle Scholar - Harrod, R. F. (1973),
*Economic Dynamics*, London: Macmillan.CrossRefGoogle Scholar - Harrod, R. F. (1996), ‘An Essay in Dynamic Theory (1938 Draft)’, edited by D. Besomi,
*History of Political Economy*28:2, pp. 253–280.CrossRefGoogle Scholar - Hawtrey, R. G. (1937),
*Capital and Employment*, London: Longmans.Google Scholar - Hicks, J. R. (1950),
*A Contribution to the Theory of the Trade Cycle*, Oxford: Clarendon Press.Google Scholar - Jolink, A. (1995), ’“Anectdotal Myths”: Tinbergen’s Influence on Harrod’s Growth Theory’,
*European Journal of the History of Economic Thought*2: 2, pp. 434–449.CrossRefGoogle Scholar - Kalecki, M. (1935), ‘A Macrodynamic Theory of Business Cycles’,
*Econometrica*3, pp. 327–344.CrossRefGoogle Scholar - Kalecki, M. (1935a), ‘Essai d’une Théorie du Mouvement Cyclique des Affaires’,
*Revue D’Économie Politique*XLIX:2, pp. 285–305.Google Scholar - Keynes, J. M. (1973),
*Collected Writings, The General Theory and After: Part II: Defence and Development (vol. XIV)*, edited by D. Moggridge. London: Macmillan/Cambridge Univ. Press.Google Scholar - Koyré, A. (1965),
*Newtonian Studies*. Cambridge (Mass.): Harvard University Press.CrossRefGoogle Scholar - Kregel, J. A. (1980), ‘Economic Dynamics and the Theory of Steady Growth: An Historical Essay on Harrod’s “Knife-Edge”’,
*History of Political Economy*, 12.1: 97–123.CrossRefGoogle Scholar - Lindemann, F A. (1936), ‘Physical Ultimates’,
*The Proceedings of the Physical Society*, vol. 48 part 6, 269, Nov., pp. 815–829.CrossRefGoogle Scholar - Medio, A. (1979),
*Harrod: Il problema della dinamica in economia*. Milano: ETAS Libri.Google Scholar - Prigogine, I., Stengers, I., and Pahaut, S. (1979), ‘La Dynamique de Leibniz à Lucrèce’,
*Critique*XXXV, pp. 35–55.Google Scholar - Pugno, M. (1992),
*Roy F. Harrod. Dall’equilibrio dinamico all’instabilità ciclica*, Bologna: Il Mulino.Google Scholar - Robertson, D. H. (1937), ‘[Review of]
*The Trade Cycle*, by R.F Harrod’,*The Canadian Journal of Economics and Political Science*, 3, Feb., pp. 124–127.CrossRefGoogle Scholar - Samuelson, P. A. (1939), ‘A Synthesis of the Multiplier Analysis and the Principle of Acceleration’,
*Journal of Political Economy*, pp. 786–797.Google Scholar - Samuelson, P. A. (1947)
*Foundations of Economic Analysis*, Cambridge (Mass.): Harvard University Press.Google Scholar - Shackle, G. L. S. (1967),
*The Years of High Theory. Invention and Tradition in Economic Thought 1926–1936*Cambridge: Cambridge University Press (cited from the 1983 paperback ed.).Google Scholar - Tinbergen, J. (1935), ‘Annual Survey: Suggestions on Quantitative Business Cycle Theory’,
*Econometrica*3, pp. 241–308.CrossRefGoogle Scholar - Tinbergen, J. (1937) ‘(Review of) Harrod, R.F.,
*The Trade Cycle. An Essay*’,*Weltwirtschaftliches Archiv*45.3, pp. 89*-91 *.Google Scholar

## Unpublished letters

- Harrod to Haberler, 19 October 1934, in HP IV-395–422 and LoN 10B/ 12653/12653.Google Scholar
- Harrod to Robertson, 3 October 1935, in HP IV-990–1069d/25.Google Scholar
- Kalecki to Harrod, 9 October 1935, in HPBL 71191/139.Google Scholar
- Harrod to Robertson, 15 November 1935, in DHR C2/3
^{5–6}Google Scholar - Harrod to Robertson, 25 December 1936, in HP IV-990–1069d/46.Google Scholar
- Harrod to Tinbergen, 1 July 1937, in JTP.Google Scholar
- Harrod to Loveday, 16 July 1937, in LoN 10B/34983/12653.Google Scholar
- Harrod to Robertson, 5 July 1938, in HP IV-990–1069d/55.Google Scholar
- Robertson to Harrod, 23 July 1938, in HP IV-990–1069d/56.Google Scholar
- Harrod to Robertson, 3 August 1938, in HP IV-990–1069d/57.Google Scholar
- Harrod to Polak, 1 September 1938, in LoN 10B/34983/12653.Google Scholar
- Harrod to Macmillan, 11 November 1942, in MA M46.Google Scholar
- Harrod to Macmillan, 16 October 1944, in MA M46.Google Scholar
- Harrod to Macmillan, 26 March 1951, in MA M46.Google Scholar

## Other unpublished documents

- Harrod, R. F. (1925*), ‘The Trade Cycle & the Theory of Distribution’, MS, 17 leaves, und., but 1925, in HP V-105.Google Scholar
- Harrod, R. F. (1940/41*), Untitled, non finished and undated book. 14 MS chapters survive (HP V-70), three of which also in TS version (HP V-71).Google Scholar
- Harrod, R. F. (1966*), Untitled autobiographical essay, 2 pages, in HP 4/E/A-1.Google Scholar
- League of Nations Harrod, R. F. (1938*), ‘Meeting at Cambridge of Experts on Business Cycle Theories’, Ts, in LoN R4540, 10B/33815/12653.Google Scholar
- Marschack, Jacob (1938*), ‘Remarks on R.EH.’s “Essay in Dynamic Theory”’, autograph unsigned, undated, in HP V-113a.Google Scholar
- Oxford Economists’ Research Group (1939*), ‘Report of the meeting held on Monday 22nd May 1939 at Christ Church’, anonymous, 3 pp. TS, in AP 171.Google Scholar

## References

- Kaldor, N. (1986), Limits on Growth,
*Oxford Economic Papers*, July.Google Scholar - Leontief, W. (ed.) (1953),
*Studies in the Structure of the American Economy*, New York.Google Scholar - Pasinetti, L.L. (1981),
*Structural Change and Economic Growth*Cambridge University Press.Google Scholar - Pasinetti, L.L. (1993),
*Structural Economic Dynamics*Cambridge University Press.CrossRefGoogle Scholar - Varri, P. (1990), Introduzione a
*Harrod, Dinamica Economica*, Bologna, Il Mulino.Google Scholar