Unemployment: Walras?s voluntary and Keynes?s involuntary


  • Ezra Davar Davar




Walras, Keynes, voluntary unemployment, involuntary unemployment, aggregate supply function


This paper shows that Keynes?s involuntary unemployment derives from Walras?s voluntary unemployment by means of changing the characteristic of the aggregate supply curve (function) of labour. On the one hand, when the original aggregate supply function is a strong-ly increasing function, as in Walras?s approach, there might only be voluntary unemployment, and its magnitude is the difference between the available quantity of labour and the equilibrium point. On the other hand, if the supply curve of labour is a weakly increasing one, which means that the supply function may have a horizontal segment, then there might be involuntary unemployment if the equilibrium point is located be-tween boundary points of the horizontal segment, and the magnitude of involun-tary unemployment is the difference between the right boundary point of the hori-zontal segment and an equilibrium point. According to Walras?s approach, ?forced unemployment? might also might be considered, which is the result of the intervention of external forces (government, monopoly, trade unions, and so on) into the market, and is therefore a disequilibrium phenomenon.


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Ahiakpor, J. C. W. (Ed.). (1998). Keynes and the Classics Reconsidered. London: Kluwer Academic Publishers.
Blaug, M. (1993). Second Thoughts on the Keynesian Revolution. In B. J, Caldwell (Ed.). The Philosophy and Methodology of Economics III. Edward Elgar.
Blaug, M. (1996). Economic Theory in Retrospect. Cambridge: Cambridge University Press.
Boianovsky, M. (2006). The Making of Chapters 13 and 14 of Patinkin?s Money Interest and Prices. History of Political Economy, 38(2). DOI: doi:10.1215/ 00182702-2005-001.
Boianovsky, M., & Trautwein. H-M. (2003). Wicksell, Cassel, and Idea of Involuntary Unemployment. History of Political Economy, 35(3). DOI: doi:10.1215/00 182702-35-3-385.
Chick, V., (1978). The Nature of the Keynesian Revolution: A Reassessment. Australian Economic Papers, 17.
Chick, V. (1983). Macroeconomics after Keynes, A Reconsideration of the General Theory. Cambridge, Massachusetts: The MIT Press.
Clower, R. W. (1965). The Keynesian Counterrevolution: a Theoretical Appraisal. In F. H. Hahn & F. P. R. Brechling (Eds.). The Theory of Interest Rate. London, Macmillan
Darity, W. A. Jr, & Horn, B. L. (1983). Involuntary Unemployment Reconsidered, Southern Economic Journal, 49.
Darity, W. Jr., & Young, W. (1997). On Rewriting Chapter 2 of The General Theory, Keynes?s Concept of Involuntary Unemployment. In G. C. Harcourt & P. A. Riach (Eds.). A ?Second Edition? of The General Theory. Vol. 1. London, Routledge.
Davar, E. (1994). The Renewal of Classical General Equilibrium Theory and Complete Input-Output System Models. Aldershot, Brookfield USA, Hong Kong, Singapore, Sydney: Avebury.
Davar, E. (2002). Mainstream Mathematical Economics in the 20tth Century by Nicola, P. C. European Journal of Political Economy. 18(2). DOI: http://dx.doi.org/10.1016/S0176-2680(01)00065-9.
Davar, E. (2012). Is ?Walras? Law? Really Walras?s Original Law?. World Review of Political Economy, 3(4). DOI: http://dx.doi.org/10.13169/worlrevipoliecon.3.4.0 478.
Davar, E. (2014a). How Flaws in the General Theory Render It Irrelevant to the Real World. Modern Economy, 5(1). DOI: http://dx.doi.org/10.4236/me.2014.51011.
Davar, E. (2014b). Walras and Contemporary Financial-Economic Crisis. Modern Economy, 5(5). DOI: http://dx.doi.org/10.4236/me.2014.55060.
Davidson, P. (1967). A Keynesian View of Patinkin?s Theory, of Employment. Economic Journal, 77.
De Vroey, M. (2004). Involuntary unemployment: the Elusive Quest for a Theory. London: Routledge.
Friedman, M. (1968). The Role of Monetary Policy. American Economic Review, 58(1).
Hahn, F. H. (1987). On Involuntary Unemployment. Economic Journal, 97.
Hayek, F. A. (1931). Prices and Production, Augustus. New York: M. Kelly, Publishers.
Hazlitt, H. (1959). The Failure of the ?New Economics?. Princeton, NJ: Van Nostrand.
Kahn, R. F. (1976). Unemployment as Seen by the Keynesians. In G. D. N. Worswick (Ed.). The Concept and Measurement of Involuntary Unemployment. London: George Allen & Unwin LTD.
Kahn, R. F. (1984). The Making of Keynes? General Theory. Cambridge: Cambridge University Press.
Keynes, J. M. (1936). The General Theory of Employment Interest and Money. London: Macmillan & Co LTD.
Klein, L. R. (1952). The Keynesian Revolution. London: Macmillan & Co LTD.
Krugman, P. (2009). How Did Economists Get It So Wrong?, The New York Times, 09/06/.
Krugman, P., & Wells, R. (2009). Macroeconomics. Worth Publishers.
Lange, O. (1944). Price Flexibility and Employment. Bloomington, Indiana: The Principia Press.
Layard, R., Nickell, S. & Jackman, R. (1994). Unemployment, Macroeconomics Performance and the Labour Market. New York: Oxford University Press.
Leijonhufvud, A. (1968). On Keynesian Economics and the Economics of Keynes. New York: Oxford University Press.
Leijonhufvud, A. (2000). Macroeconomic Instability and Coordination. Edward Elgar.
Leontief, W. (1947). Postulates: Keynes? General Theory and the Classics. In S. E. Harris (Ed.). The New Economics, Keynes Influence on Theory and Public Policy. New York: Alfred A. Knopf
Lucas, R. E Jr. (1978). Unemployment Policy. American Economic Review, 68(2).
Lipsey, R. G., Steiner, P. O., Douglas, D. P. & Courant, P. N. (1990). Economics. Longman Higher Education.
Madden, P. (1992). A Disequilibrium Rational Expectations Model with Walrasian Prices and Involuntary Unemployment. Rewire of Economic Studies, 59.
Mankiw, N.G. (1997). Macroeconomics. Worth Publishers.
Mises, L. Von (1998). Human Action: The Scholar?s Edition. Auburn Ala: The Mises Institute; Retrieved form htpp://mises.org/humanaction/chapter21sec4.asp.
Morishima, M. (1977). Walras? Economics. London: Cambridge University Press.
Modigliani, F. (1944). Liquidity Preference and the Theory of Interest and Money. Econometrica, 112.
Negishi, T. (1979). Microeconomic Foundations of Keynesian Macroeconomics. New york: North-Holland.
Negishi, T. (1985). Economic Theories in a non-Walrasian Tradition. Cambridge: Cambridge University Press.
Negishi, T. (1989). History of Economic Theory. New York: North-Holland.
Patinkin, D. (1965). Money, Interest and Prices. New York: Harper & Row.
Patinkin, D. (1949). Involuntary Unemployment and the Keynesian Supply Function. Economic Journal, 59.
Pissarides, Ch. A. (2000). Equilibrium Unemployment Theory. Cambridge: The MIT Press.
Rothbard, M. N. (2004). Man and State, The Scholar?s Edition. Auburn Al: The Mises Institute. Retrieved form htpp://mises.org/rothbard/mes.asp.
Sachs, J. D, & Larrain, F. B. (1993). Macroeconomics In The Global Economy. New Jersey: Prentice Hall, Englewood Cliffs.
Shapiro, C., & Stiglitz, J. E. (1985). Can Unemployment Be Involuntary? Reply. American Economic Review, 75(5).
Shapiro, C. & Stiglitz, J. E. (1991). Equilibrium Unemployment as a Worker-Discipline Device. In N. G. Mankiw & D. Romer (Eds.). New Keynesian Economics. Cambridge: The MIT Press.
Skidelski, R. (1996). John Maynard Keynes. London: Macmillan.
Taylor, J. B. (1987). Involuntary Unemployment. In J. Eatwell, M. Milgate & P. Newman. (Eds.). The New Palgrave Dictionary of Economics. Basingstoke: Macmillan.
Trevithick, J. A. (1992). Involuntary Unemployment: Macroeconomics from Keynesian Perspective. London: Harvester Wheatsheaf.
Viner, J. (1964). Mr. Keynes on the Causes of Unemployment /1936, Comment on My 1936 Review of Keynes? General Theory. In R. Lekachman (Ed.). Keynes? General Theory, Reports of Three Decades. London: St Martin?s Press Macmillan & Co Ltd.
Walras, L. (1954). Theory of Pure Economics. London.
Walras, L. (2005). Studies in Applied Economics Theory of the Production of Social Wealth. London: Routledge.




How to Cite

Davar, E. D. (2016). Unemployment: Walras?s voluntary and Keynes?s involuntary. Equilibrium. Quarterly Journal of Economics and Economic Policy, 11(3), 605–629. https://doi.org/10.12775/EQUIL.2016.027