Browsing Journal Articles by Author "Gallegati, Mauro"

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Browsing Journal Articles by Author "Gallegati, Mauro"

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  • Delli Gatti, Domenico; Di Guilmi, Corrado; Gaffeo, Edoardo; Gallegati, Mauro (Elsevier Science BV, 2004)
    Dynamical systems with components whose sizes evolve according to multiplicative stochastic rules have been recently combined with entry and exit processes. We show that the assumptions usually made in modeling exits are ...
  • Delli Gatti, Domenico; Di Guilmi, Corrado; Gaffeo, Edoardo; Gallegati, Mauro; Giulioni, Gianfranco; Palestrini, Antonio (World Scientific, 2004)
    Power law behavior is an emerging property of many economic models. In this paper we emphasize the fact that power law distributions are persistent but not time invariant. In fact, the scale and shape of the firms' size ...
  • Fujiwara, Yoshi; Di Guilmi, Corrado; Aoyama, Hideaki; Gallegati, Mauro; Souma, Wataru (Elsevier Science BV, 2004)
    By employing exhaustive lists of large firms in European countries, we show that the upper-tail of the distribution of firm size can be fitted with a power-law (Pareto?Zipf law), and that in this region the growth rate of ...
  • Di Guilmi, Corrado; Gaffeo, Edoardo; Gallegati, Mauro (Elsevier Science BV, 2004)
    We study the size distribution of business cycles phases, that is expansions and contractions, for a sample of 16 industrialized countries over 120 years. We find that the best-fitting distribution for both expansions and ...
  • Fujiwara, Yoshi; Aoyama, Hideaki; Di Guilmi, Corrado; Souma, Wataru; Gallegati, Mauro (Elsevier Science BV, 2004)
    A firms growth and failure are the two sides of the same coin. This paper reports new phenomenological findings for firm size distribution and growth, and bankruptcy. This paper is based on [Y. Fujiwara et al., Physica A ...
  • Di Guilmi, Corrado; Gallegati, Mauro; Ormerod, Paul (Elsevier Science BV, 2004)
    Self-similar models are largely used to describe the extinction rate of biological species. In this paper we analyse the extinction rate of firms in eight OECD countries. Firms are classified by industrial sectors and ...
  • Delli Gatti, Domenico; Di Guilmi, Corrado; Gallegati, Mauro; Gaffeo, Edoardo; Giulioni, Gianfranco; Palestrini, Antonio (World Scientific, 2008)
    The practice of detecting power laws and scaling behaviors in economics and finance has gained momentum in the last few years, due to the increased use of concepts and methods first developed in statistical physics. Some ...