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Technological Synergies, Heterogeneous Firms and Idiosyncratic Volatility

Author

Listed:
  • Jesus Fernandez-Villaverde
  • Yang Yu
  • Francesco Zanetti

Abstract

This paper shows the importance of technological synergies among heterogeneous firms for aggregate fluctuations. First, we document six novel empirical facts using microdata that suggest the existence of important technological synergies between trading firms, the presence of positive assortative matching among firms, and their evolution during the business cycle. Next, we embed technological synergies in a general equilibrium model calibrated on firm-level data. We show that frictions in forming trading relationships and separation costs explain imperfect sorting between firms in equilibrium. In particular, an increase in the volatility of idiosyncratic productivity shocks significantly decreases aggregate output without resorting to non-convex adjustment costs.

Suggested Citation

  • Jesus Fernandez-Villaverde & Yang Yu & Francesco Zanetti, 2024. "Technological Synergies, Heterogeneous Firms and Idiosyncratic Volatility," CAMA Working Papers 2024-22, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
    • Handle: RePEc:een:camaaa:2024-22
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    File URL: https://crawford.anu.edu.au/sites/default/files/2025-01/22_2024_fernandez-villaverde_yu_zanetti.pdf
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    Cited by:

    1. Jesús Fernández-Villaverde & Yiliang Li & Le Xu & Francesco Zanetti, 2025. "Charting the Uncharted: The (Un)Intended Consequences of Oil Sanctions and Dark Shipping," CESifo Working Paper Series 11684, CESifo.
    2. Jesús Fernández-Villaverde & Yang Yu & Francesco Zanetti, 2025. "Defensive Hiring and Creative Destruction," NBER Working Papers 33588, National Bureau of Economic Research, Inc.

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    Keywords

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    JEL classification:

    • C63 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computational Techniques
    • C68 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computable General Equilibrium Models
    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E37 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Forecasting and Simulation: Models and Applications
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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