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Complex Dynamics And Financial Fragility In An Agent-Based Model

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Author Info

  • MAURO GALLEGATI

    ()
    (Department of Economics, University of Ancona, Piazzale Martelli, 8, Ancona, 60121, Italy)

  • GIANFRANCO GIULIONI

    ()
    (Department of Economics, University of Ancona, Piazzale Martelli, 8, Ancona, 60121, Italy)

  • NOZOMI KICHIJI

    ()
    (Graduate School of Economics, Hokkaido University, Kita 9 Nishi 7, Kita-Ku, Sapporo, 060-0809, Japan)

Abstract

We model an agent-based economy in which heterogeneous agents (firms and a bank) interact in the financial markets. The heterogeneity is due to the balance sheet conditions and to size. In our simulations, at the aggregate level, output displays changes in trend and volatility giving rise to complex dynamics. The average solvency and liquidity ratios peak during recessions as empirical analysis shows. At the firm level the model generates: (i) firm sizes left-skewed distributed, (ii) growth rates Laplace distributed. Furthermore, small idiosyncratic shocks can generate large aggregate fluctuations.

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Bibliographic Info

Article provided by World Scientific Publishing Co. Pte. Ltd. in its journal Advances in Complex Systems.

Volume (Year): 06 (2003)
Issue (Month): 03 ()
Pages: 267-282

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Handle: RePEc:wsi:acsxxx:v:06:y:2003:i:03:p:267-282

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Related research

Keywords: Complex macroeconomic dynamics; financial fragility; agent based simulation;

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Cited by:
  1. Bianchi, Carlo & Cirillo, Pasquale & Gallegati, Mauro & Vagliasindi, Pietro A., 2008. "Validation in agent-based models: An investigation on the CATS model," Journal of Economic Behavior & Organization, Elsevier, vol. 67(3-4), pages 947-964, September.
  2. Batuo Enowbi, Michael & Kupukile, Mlambo, 2012. "Financial instability, financial openness and economic growth in african countries," MPRA Paper 43340, University Library of Munich, Germany.
  3. Neveu, Andre R., 2013. "Fiscal policy and business cycle characteristics in a heterogeneous agent macro model," Journal of Economic Behavior & Organization, Elsevier, vol. 92(C), pages 224-240.
  4. Gatti, Domenico Delli & Guilmi, Corrado Di & Gaffeo, Edoardo & Giulioni, Gianfranco & Gallegati, Mauro & Palestrini, Antonio, 2005. "A new approach to business fluctuations: heterogeneous interacting agents, scaling laws and financial fragility," Journal of Economic Behavior & Organization, Elsevier, vol. 56(4), pages 489-512, April.
  5. Ikeda, Yuichi & Aoyama, Hideaki & Iyetomi, Hiroshi & Fujiwara, Yoshi & Souma, Wataru & Kaizoji, Taisei, 2007. "Response of firm agent network to exogenous shock," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 382(1), pages 138-148.
  6. Carlo Bianchi & Pasquale Cirillo & Mauro Gallegati & Pietro Vagliasindi, 2007. "Validating and Calibrating Agent-Based Models: A Case Study," Computational Economics, Society for Computational Economics, vol. 30(3), pages 245-264, October.
  7. Gatti, Domenico Delli & Di Guilmi, Corrado & Gallegati, Mauro & Giulioni, Gianfranco, 2007. "Financial Fragility, Industrial Dynamics, And Business Fluctuations In An Agent-Based Model," Macroeconomic Dynamics, Cambridge University Press, vol. 11(S1), pages 62-79, November.

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