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Alla ricerca di una migliore teoria macroeconomica (Looking for a better macroeconomic theory)

Author

Listed:
  • Heinz D. Kurz

    (University of Graz)

  • Neri Salvadori

    (Università di Pisa)

Abstract

Questo articolo sottolinea che un certo numero di elementi costitutivi della moderna macroeconomia e dei risultati che ne derivano non sono sostenibili. Il riferimento è alle presunte microfondazioni della teoria e, in particolare, all'uso di funzioni di produzione macroeconomiche e al metodo dell'agente rappresentativo. Le leggi semplici e apparentemente non invasive della domanda di input e dell'offerta di output non sono sostenibili in generale. I macroeconomisti sono spesso orgogliosi di sviluppare le loro argomentazioni in termini di una versione ridotta della teoria dell'equilibrio generale, ma si comportano come se ignorassero che la stabilità dell'equilibrio economico generale non può essere dimostrata in condizioni sufficientemente generali. Una ulteriore fonte di instabilità del sistema economico è riscontrabile nel carattere dirompente del cambiamento tecnologico. A number of the constituent elements and results of modern macroeconomics are not tenable. We refer to the alleged microfoundations of the prevailing theory, to the use of macroeconomic production functions and to the representative agent method. The simple and apparently unobtrusive laws of input demand and output supply are not valid in general. Macroeconomists often pride themselves of developing their argument in terms of a stripped-down version of general equilibrium theory, but they ignore the fact that the stability of general economic equilibrium cannot be demonstrated under sufficiently general conditions. A further source of instability of the economic system is the disruptive nature of technological change.

Suggested Citation

  • Heinz D. Kurz & Neri Salvadori, 2019. "Alla ricerca di una migliore teoria macroeconomica (Looking for a better macroeconomic theory)," Moneta e Credito, Economia civile, vol. 72(287), pages 229-247.
  • Handle: RePEc:psl:moneta:2019:36
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    File URL: https://ojs.uniroma1.it/index.php/monetaecredito/article/view/15562/14982
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    References listed on IDEAS

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    More about this item

    Keywords

    capital theory; ceteris paribus clause; innovations; microfoundations;
    All these keywords.

    JEL classification:

    • D01 - Microeconomics - - General - - - Microeconomic Behavior: Underlying Principles
    • D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
    • E10 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - General
    • E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical
    • E24 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity

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