• Equilibrio walrasiano en economías de intercambio 

      Acuña Ortega, Osvaldo; Ulate Montero, Fernán (2009-02-18)
      We present the aggregated excess demand functions in an exchange economy. We study the properties and the equilibrium price vector of the aggregated excess demand functions. We prove that the walrasian equilibrium is a ...
    • Formalización de una teoría de la mentalidad 

      Ulate Montero, Fernán (2009-02-20)
      We introduce a model based in Game Theory, and those used primarily in biology(evolutionary games) to understand history. We are interested in use the model tounderstand the last years of the colony of Costa Rica. We proved ...
    • Repeating games and dynamical systems in oil market 

      Acuña Ortega, Osvaldo; Ulate Montero, Fernán (2010-04-16)
         We use the modern theory of repetitive games in a model that help understand a market with a cartel like OPEP. We also study a dynamical system Lotka-Volterra type, and we analyze the dynamic behavior of the model.