Abstract.
I discuss the role of toy models as theoretical tools for understanding complex systems of interacting agents. I review some concrete examples, in order to illustrate how this approach is able to capture, though in an admittedly stylized way, the interactions and non-linearities which are responsible for the rich phenomenology observed in reality. This allows one to interpret the system's behavior in terms of phase transitions and critical phenomena.
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Marsili, M. Toy models and stylized realities. Eur. Phys. J. B 55, 169–173 (2007). https://doi.org/10.1140/epjb/e2006-00237-3
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DOI: https://doi.org/10.1140/epjb/e2006-00237-3