Cruz keynesiana: interpretações gráficas da demanda efetiva

Heller, Claudia and Dessotti, Marina (2007): Cruz keynesiana: interpretações gráficas da demanda efetiva.

Abstract

The General Theory of Employment, Interest and Money by John Maynard Keynes led up to three cross-shaped graphical interpretations: the IS-LM model, the 45º model and the Z-D model. The first one was originated from Hicks (1937) well-known paper, despite the differences between his original version and the textbook versions. The second one has become familiar through Alvin Hansen´s 1953 book, to which Paul Samuelson also contributed. These two models are considered to be neoclassical – the meaning of which in this particular context will be discussed in our paper. The third model has became popular through Dudley Dillard´s 1948 book and is embraced – with few qualifications – by Post Keynesians, who consider it to be more faithful to Keynes´s original 1936 book. The three models are graphical (and algebraical) formalizations of Keynes´s theory, but the last two are more specific in that they are focused on the explanation of the Principle of Effective Demand (PED). This paper compares the two graphical representations of the PED in the light of the definitions of aggregate demand, aggregate supply and effective demand, as they were presented by Keynes in the General Theory. The purpose of the paper is to identify which original arguments by Keynes support each of both models

• Item Type: MPRA Paper
• Institution: Universidade Estadual Paulista - UNESP
• English Title: Keynesian cross: diagrammatical interpretations of effective demand
• Language: Portuguese
• Keywords: Keynesianism; 45º model; Z-D model
• Subjects: B - History of Economic Thought, Methodology, and Heterodox Approaches > B2 - History of Economic Thought since 1925 > B20 - General; B - History of Economic Thought, Methodology, and Heterodox Approaches > B2 - History of Economic Thought since 1925 > B22 - Macroeconomics

References

AMBROSI, G. M. (1981) Keynes and the 45-degree cross. Journal of Post Keynesian Economics, v. 3, n. 4, pp. 503-509. BRADY, M. E. (1990) The mathematical development of Keynes's aggregate supply function in the General Theory. History of Political Economy, v. 22, pp. 167-172. BRADY, M. E. (1996) A comparison-contrast of J. M. Keynes’ mathematical modeling approach in the General Theory with some of his General Theory interpreters, especially J. E. Meade. History of Economics Review v. 25, pp. 129-159 BRADY, M. E. (1999a) A note on Don Patinkin´s misspecification of Keynes´s consumption function and misinterpretation of Keynes' elasticity analysis in chapter 10 of the General Theory. Indian Journal of Applied Economics, v. 8, n.1, pp. 147-152. BRADY, M. E. (1999b) Patinkin, the General Theory, and Keynes's aggregate supply function: a study of the reasons underlying Patinkin's misinterpretation of the GT. Indian Journal of Applied Economics. v. 8, n. 1, pp. 175-190. BRADY, M. E. (1999c) A study of the 1954-1956 Economic Journal aggregate supply function debate and the post-keynesian theoretical wrong turn. Indian Journal of Applied Economics, v. 8, pp. 57-74. BRADY, M. E. (2002) A mathematical proof of Keynes’ general case. International Journal of Applied Economics and Econometrics, v. 10, n. 3, pp. 422-430. BRADY, M. E. (2004) Essays on J.M. Keynes and.... Xlibris Corp. BRADY, M. E. (2006) The applied mathematics of J .M. Keynes' theory of effective demand in the General Theory: correcting the mathematical errors of the economics profession. Xlibris Corporation CHICK, V. (1983) Macroeconomics after Keynes: a reconsideration of the General Theory, Oxford: Philip Alan. CHICK, V. (1992): A comment on John Nevile’s notes on aggregate supply. Journal of Post Keynesian Economics, v. 15, n. 2, pp. 261-262 De JONG, F. J (1954) Supply functions in Keynesian economics. Economic Journal, v. 64, n. 253, pp. 3-24. DESSOTTI, M. V. (2006). A cruz keynesiana: abordagens neoclássicas e pós-keynesianas. Monografia de conclusão de curso de graduação em economia. Araraquara: Universidade Estadual Paulista Júlio de Mesquita Filho, Mimeo, 28 p. DILLARD, D. (1948) The Economics of John Maynard Keynes – The Theory of a Monetary Economy. New York: Prentice-Hall ECONOMIC JOURNAL, The (1983) The Economic Journal - Cumulative Index of Articles and Book Reviews - volumes 41-90 (1931-1980). Cambridge: Cambridge University Press / Royal Economic Society. FERREIRA, R. S & MICHEL, P. (1988) Reflections on the microeconomic foundations of the Keynesian aggregate supply function. In: BARRERE, A. (ed)(1988): The Foundation of Keynesian Analysis. London: Macmillan, pp. 251-262. HANSEN, Alvin Harvey (1953): A Guide to Keynes. Mc-Graw-Hill, New York KAHN, R. F. (1931): The Relation of Home Investment to Unemployment. Economic Journal, v. 41, n. 162, pp. 173-198. KEYNES, J. M. (1936): The General Theory of Employment, Interest and Money, London, Macmillan Press Ltd. KING, J. E. (1994) Aggregate supply and demand analysis since Keynes: A partial history. Journal of Post Keynesian Economics, v. 17, n. 1, pp. 3-32 KLEIN, L. R. (1949) The Economics of John Maynard Keynes by Dudley Dillard. American Economic Review, v. 39, n. 6, pp. 1291-1293 NEVILE, John (1992): Notes on Keynes’s aggregate supply curve. Journal of Post Keynesian Economics, v. 15, n. 2, pp. 255-260. PATINKIN, D. (1949) Involuntary unemployment and the Keynesian supply function. Economic Journal, v. 59, pp. 360-383. PATINKIN, D. (1956): Money, Interest and Prices, 2nd. ed., New York, Harper & Row. PATINKIN, D. (1976): Keynes’ Monetary Thought: a study of its development. Duke University Press, Durnham, N.C. PATINKIN, D. (1978): Keynes’s aggregate supply function: a plea for common sense. History of Political Economy, v. 10., n. 4, pp. 577-596. PATINKIN, D. (1979): A study of Keynes’ theory of effective demand. Economic Enquiry, v. 17, pp. 155-176 ROBERTS, D. L (1978) Patinkin, Keynes, and aggregate supply and demand analysis. History of Political Economy, v. 10, pp. 549-576. ROBERTSON, D. H. & JOHNSON, H. G. (1955) Keynes and supply functions. Economic Journal, v. 65, pp. 474-478. ROBINSON, J. V. (1937) Introduction to the Theory of Employment. London: Macmillan SAMUELSON, P. A. (1948) Economics: An introductory analysis. McGraw-Hill. SAMUELSON, P. A. (1976): Alvin Hansen as a creative economic theorist. Quarterly Journal of Economics, v. 90, pp. 24-31 WELLS, Paul (1962): Aggregate supply and demand: an explanation of chapter III of the ‘General Theory’. Canadian Journal of Economics and Political Sciences, v. 28, n. 4, pp. 585-590.