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Az egyensúlyi ráták unicitása és a bérráta pozitivitása a Neumann-modell általánosításaiban
[Uniqueness of equilibrium rates and the positive value of the wage rate in generalizations from the Neumann model]

Author

Listed:
  • Zalai, Ernő
Abstract
Cikkünk arról a paradox jelenségről szól, hogy a fogyasztást explicit módon megjelenítő Neumann-modell egyensúlyi megoldásaiban a munkabért meghatározó létszükségleti termékek ára esetenként nulla lehet, és emiatt a reálbér egyensúlyi értéke is nulla lesz. Ez a jelenség mindig bekövetkezik az olyan dekomponálható gazdaságok esetén, amelyekben eltérő növekedési és profitrátájú, alternatív egyensúlyi megoldások léteznek. A jelenség sokkal áttekinthetőbb formában tárgyalható a modell Leontief-eljárásra épülő egyszerűbb változatában is, amit ki is használunk. Megmutatjuk, hogy a legnagyobbnál alacsonyabb szintű növekedési tényezőjű megoldások közgazdasági szempontból értelmetlenek, és így érdektelenek. Ezzel voltaképpen egyrészt azt mutatjuk meg, hogy Neumann kiváló intuíciója jól működött, amikor ragaszkodott modellje egyértelmű megoldásához, másrészt pedig azt is, hogy ehhez nincs szükség a gazdaság dekomponálhatóságának feltételezésére. A vizsgált téma szorosan kapcsolódik az általános profitráta meghatározásának - Sraffa által modern formába öntött - Ricardo-féle elemzéséhez, illetve a neoklasszikus növekedéselmélet nevezetes bér-profit, illetve felhalmozás-fogyasztás átváltási határgörbéihez, ami jelzi a téma elméleti és elmélettörténeti érdekességét is. Journal of Economic Literature (JEL) kód: B16, B23, B41, C62, C67, O41.

Suggested Citation

  • Zalai, Ernő, 2011. "Az egyensúlyi ráták unicitása és a bérráta pozitivitása a Neumann-modell általánosításaiban [Uniqueness of equilibrium rates and the positive value of the wage rate in generalizations from the Neum," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(1), pages 20-40.
    • Handle: RePEc:ksa:szemle:1216
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    References listed on IDEAS

    as
    1. Ricardo, David, 1821. "On the Principles of Political Economy and Taxation," History of Economic Thought Books, McMaster University Archive for the History of Economic Thought, edition 3, number ricardo1821.
    2. M. Bruno, 1969. "Fundamental Duality Relations in the Pure Theory of Capital and Growth," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 36(1), pages 39-53.
    3. Csaba, László, 2008. "Módszertan és relevancia a közgazdaságtanban. A mai közgazdaságtan és a társtudományok [Methodology and relevancy in economics. Today s economics and associated sciences]," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(4), pages 285-307.
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    Cited by:

    1. Medvegyev, Péter, 2011. "Bródy András és a dualitás matematikai elmélete. A gazdasági növekedés Neumann- modellje [András Bródy and the mathematical theory of duality. His Neumann model of economic growth]," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(1), pages 3-7.
    2. Zalai, Ernő, 2014. "Neumann versus Leontief. Két modell - két gazdaságkép [Neumann vs Leontief. Two models, two approaches to the economy]," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(11), pages 1245-1278.

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    More about this item

    JEL classification:

    • B16 - Schools of Economic Thought and Methodology - - History of Economic Thought through 1925 - - - Quantitative and Mathematical
    • B23 - Schools of Economic Thought and Methodology - - History of Economic Thought since 1925 - - - Econometrics; Quantitative and Mathematical Studies
    • B41 - Schools of Economic Thought and Methodology - - Economic Methodology - - - Economic Methodology
    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • C67 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Input-Output Models
    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models

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