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Mr. Keynes, Prof. Krugman, IS-LM, and the End of Economics as We Know It

Author

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  • Kakarot-Handtke, Egmont

Abstract

Krugman has recently revitalized IS-LM with a number of succinct analytical pieces on his blog. The reverberations were remarkable. Economists, however, are known often not grasp the full content of their own and, a fortiori, of others’ models. This happened to Keynes in the days of high theory and to Krugman in these days. Keynes applied a defect formalism, which is here replaced by objective-structural axioms. This yields the correct relationship between retained profit, saving, and investment which in turn makes it clear after the event that the IS-part of the IS-LM construct never could bear any substantive theoretical load.

Suggested Citation

  • Kakarot-Handtke, Egmont, 2014. "Mr. Keynes, Prof. Krugman, IS-LM, and the End of Economics as We Know It," MPRA Paper 53608, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:53608
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    File URL: https://mpra.ub.uni-muenchen.de/53608/1/MPRA_paper_53608.pdf
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    References listed on IDEAS

    as
    1. Kakarot-Handtke, Egmont, 2011. "Reconstructing the Quantity Theory (I)," MPRA Paper 32421, University Library of Munich, Germany.
    2. F. A. Lutz, 1938. "The Outcome of the Saving-Investment Discussion," The Quarterly Journal of Economics, Oxford University Press, vol. 52(4), pages 588-614.
    3. Tomasson, Gunnar & Bezemer, Dirk J, 2010. "What is the Source of Profit and Interest? A Classical Conundrum Reconsidered," MPRA Paper 20320, University Library of Munich, Germany.
    4. A. P. Lerner, 1938. "Saving Equals Investment," The Quarterly Journal of Economics, Oxford University Press, vol. 52(2), pages 297-309.
    5. Ingo Barens, 1997. "What Went Wrong with IS-LM/AS-AD Analysis--And Why," Eastern Economic Journal, Eastern Economic Association, vol. 23(1), pages 89-99, Winter.
    6. Keen, Steve, 2010. "Solving the paradox of monetary profits," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy (IfW), vol. 4, pages 1-32.
    7. Laidler,David, 1999. "Fabricating the Keynesian Revolution," Cambridge Books, Cambridge University Press, number 9780521641739, April.
    8. Olivier Blanchard, 2000. "What Do We Know about Macroeconomics that Fisher and Wicksell Did Not?," The Quarterly Journal of Economics, Oxford University Press, vol. 115(4), pages 1375-1409.
    9. Robert G. King, 1993. "Will the New Keynesian Macroeconomics Resurrect the IS-LM Model?," Journal of Economic Perspectives, American Economic Association, vol. 7(1), pages 67-82, Winter.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    new framework of concepts; structure-centric; axiom set; Hicks; Allais;

    JEL classification:

    • B59 - Schools of Economic Thought and Methodology - - Current Heterodox Approaches - - - Other
    • E12 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Keynes; Keynesian; Post-Keynesian
    • E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical

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