A hydrodynamic model for cooperating solidary countries

  • Roberto De Luca
  • Marco Di Mauro
  • Angelo Falzarano
  • Adele Naddeo
Regular Article


The goal of international trade theories is to explain the exchange of goods and services between different countries, aiming to benefit from it. Albeit the idea is very simple and known since ancient history, smart policy and business strategies need to be implemented by each subject, resulting in a complex as well as not obvious interplay. In order to understand such a complexity, different theories have been developed since the sixteenth century and today new ideas still continue to enter the game. Among them, the so called classical theories are country-based and range from Absolute and Comparative Advantage theories by A. Smith and D. Ricardo to Factor Proportions theory by E. Heckscher and B. Ohlin. In this work we build a simple hydrodynamic model, able to reproduce the main conclusions of Comparative Advantage theory in its simplest setup, i.e. a two-country world with country A and country B exchanging two goods within a genuine exchange-based economy and a trade flow ruled only by market forces. The model is further generalized by introducing money in order to discuss its role in shaping trade patterns. Advantages and drawbacks of the model are also discussed together with perspectives for its improvement.


Statistical and Nonlinear Physics 


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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Dipartimento di Fisica E.R. Caianiello, Universitá di SalernoFisciano (SA)Italy
  2. 2.Dipartimento di Scienze Economiche e Statistiche, Universitá di Napoli Federico IINapoliItaly
  3. 3.INFN Sezione di NapoliNapoliItaly

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