# Keynesian Economics and General Equilibrium Theory: Reflections on Some Current Debates

## Abstract

To many economists Keynesian economics deals with important relevant problems and General Equilibrium theory deals with no relevant problems at all. This view is often the consequence of the ease of learning Keynesian macro-arithmetic compared with reading Debreu. But it also has, alas, an element of truth. This is quite simply that General Equilibrium theorists have been unable to deliver one half at least of the required story: how does General Equilibrium come to be established? Closely related to this lacuna is the question of what signals are perceived and transmitted in a decentralised economy and how? The importance of Keynesian economics to the General Equilibrium theorist is twofold. It seems to be addressed to just these kinds of questions and it is plainly in need of proper theoretical foundations.

## Keywords

General Equilibrium Excess Demand Equilibrium Theory Walrasian Equilibrium Perfect Competition## Preview

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## References

- K. J. Arrow, ‘Towards a Theory of Price Adjustment’ in A. Abramovitz (ed.),
*The Allocation of Economic Resources*( Stanford: University of California Press, 1959 ).Google Scholar - K. J. Arrow and F. H. Hahn,
*General Competitive Analysis*(San Francisco: Holden-Day;Edinburgh: Oliver & Boyd, 1971 ).Google Scholar - R. J. Barro and H. I. Grossman, ‘A General Disequilibrium Model of Income and Employment’,
*American Economic Review*, Vol. 60, No 1 ( March 1971 pp. 82–93.Google Scholar - J. P. Benassy, ‘Neo-Keynesian Disequilibrium in a Monetary Economy’ ( Paris: CEPREMAP, 1974 ).Google Scholar
- J. P. Benassy, ‘The Disequilibrium Approach to Monopolistic Price Setting and General Monopolistic Equilibrium’,
*Review of Economic Studies*, Vol. XLIII(1), No 133 (February 1976), pp. 69–81.Google Scholar - R. W. Clower, `The Keynesian Counterrevolution: A Theoretical Appraisal’, in F. H. Hahn and F. P. R. Brechling, (eds),
*The Theory of Interest Rates*( London: Macmillan, 1965 ).Google Scholar - J. Dréze, ‘Investment under Private Ownership: Optimality, Equilibrium and Stability’ in J. Dréze (ed.),
*Allocation under uncertainty: Equilibrium and Optimality*( London: Macmillan, 1974 ).Google Scholar - J. Dréze, ‘Existence of an Exchange Equilibrium under Price Rigidities’
*International Economic Review*, Vol. 16, No 2, (June 1975) pp. 301–20.CrossRefGoogle Scholar - C. A. Futia, ‘Excess Supply Equilibria’
*Bell Telephone Laboratories*, 1975.Google Scholar - J. M. Grandmont, ‘A Temporary General Equilibrium Theory’ (Paris: CEPREMAP, 1976 ).Google Scholar
- J. M. Grandmont and G. Laroque, ‘On Temporary Keynesian Equilibria’,
*Review of Economic Studies*, Vol. XLIII(1), No 133 (February 1976) pp. 53–67.Google Scholar - J. M. Grandmont and Y. Younès, ‘On the Role of Money and the Existence of a Monetary Equilibrium’,
*Review of Economic Studies*Vol. XXXIX (3), No 119 (July 1972)pp. 355–72.CrossRefGoogle Scholar - J. R. Green, ‘Temporary General Equilibrium in a Sequential Trading Model with Spot and Futures Transactions’,
*Econometrica*, Vol. 41, No 6 (November 1973) pp. 1103–23.CrossRefGoogle Scholar - F. H. Hahn, ‘On Some Problems of Proving the Existence of Equilibrium in a Monetary Economy’ in F. H. Hahn and F. P. R. Brechling (eds),
*The Theory of Interest Rates*( London: Macmillan, 1965 ).Google Scholar - F. H. Hahn, ‘On Non Walrasian Equilibria’, (University of Cambridge, mimeographed, 1976 ).Google Scholar
- F. H. Hahn and T. Negishi, ‘A Theorem on Non-Tâtonnement Stability,
*Econometrica*, VoL 30, No 3 (July 1962) pp. 463–9.Google Scholar - O. D. Hart, ‘On The Existence of Equilibrium in a Securities Model’,
*Journal of Economic Theory*, Vol. 9, No 3 (November 1974), pp. 293–311.CrossRefGoogle Scholar - J. R. Hicks,
*Value and Capital. An Inquiry into some Fundamental Principles of Economic Theory*( Oxford: Clarendon Press, 1939 ).Google Scholar - K. Iwai, ‘The Firm in Uncertain Markets and Its Price, Wage and Employment Adjust-ments’,
*Review of Economic Studies*, Vol. XLI (2), No 126 (April 1974) pp. 257–76.Google Scholar - N. Kaldor,’Speculation and Economic Stability’,
*Review of Economic Studies*, Vol. VII,No 1 (October 1939) pp. 1–27.CrossRefGoogle Scholar - J. M. Keynes,
*The General Theory of Employment, Interest and Money*( London: Macmillan, 1936 ).Google Scholar - L. R. Klein,
*The Keynesian Revolution*( London: Macmillan, 1950 ).Google Scholar - A. Leijonhufvud,
*On Keynesian Economics and the Economics of Keynes. A Study in Monetary Theory*( New York: Oxford University Press, 1968 ).Google Scholar - T. Negishi, ‘Monopolistic Competition and General Equilibrium’,
*Review of Economic Studies*, Vol. XXVIII, No 77 (July 1961) pp. 196–201.CrossRefGoogle Scholar - T. Negishi, ‘Existence of an Under-Employment Equilibrium’, (University of London, mimeographed, 1974 ).Google Scholar
- J. M. Ostroy and R. M. Starr, ‘Money and the Decentralisation of Exchange’,
*Econometrica*, Vol. 42, No 6 (November 1974) pp. 1093–113.CrossRefGoogle Scholar - D. Patinkin,
*Money Interest and Prices*(New York: Harper and Row, 2nd ed., 1965 ).Google Scholar - A. Wood,
*A Theory of Profits*( Cambridge: Cambridge University Press, 1975 ).Google Scholar