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Endogenous Productivity Dynamics in a Two-Sector Business Cycle Model

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  • Fabio Massimo Piersanti
  • Patrizio Tirelli

Abstract

We develop a stylized two-sector business cycle model with endogenous firm dynamics in the investment goods sector. The positive correlation between firms profitability and the relative price of investment goods generates an endogenous persistence mechanism in productivity dynamics which drives the model response to shocks. A white noise permanent shock to the productivity of new entrants causes endogenous exit and subsequent rounds of productivity increases, due to the competitive pressure generated by falling relative prices of investment goods. The model internal propagation mechanism generates persistent dynamics and a large "multiplier effect" on the initial shock. Neutral productivity shocks affect long run firms productivity in the Investment-goods sector through their effect on relative prices. Firms productivity is also endogenous to shocks to the marginal efficiency of investment. The DSGE version of the model apparently survives the Barro-King curse.

Suggested Citation

  • Fabio Massimo Piersanti & Patrizio Tirelli, 2020. "Endogenous Productivity Dynamics in a Two-Sector Business Cycle Model," Working Papers 434, University of Milano-Bicocca, Department of Economics, revised Feb 2020.
    • Handle: RePEc:mib:wpaper:434
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    References listed on IDEAS

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    Cited by:

    1. Etro, Federico, 2023. "Technologies for endogenous growth," Journal of Mathematical Economics, Elsevier, vol. 105(C).
    2. Bianca Barbaro & Giorgio Massari & Patrizio Tirelli, 2022. "Who killed business dynamism in the U.S.?," Working Papers 494, University of Milano-Bicocca, Department of Economics, revised Aug 2022.
    3. Bianca Barbaro & Patrizio Tirelli, 2023. "Forbearance vs foreclosure in a general equilibrium model," Working Papers 516, University of Milano-Bicocca, Department of Economics.
    4. Barbaro, Bianca & Tirelli, Patrizio, 2021. "Forbearance vs foreclosure in a general equilibrium model," Working Paper Series 2531, European Central Bank.

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    More about this item

    Keywords

    Productivity shocks; Investment shocks; relative price of investment; DSGE model; Firms entry; Firms exit;
    All these keywords.

    JEL classification:

    • E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity
    • E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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