In this work we show that it is possible to extend the classical implicit function theorem to mappings defined in a cartesian product of two convex subsets, not necessarily open, included in the cartesian product of two Banach spaces, in to another Banach space. We apply this theorem to show...

In this article, within the framework of the General Equilibrium Theory, we present a model of evolutionary economy, with I consumers and N companies located in M different interrelated productive markets, in which the production decisions of the managers of the firms are the engine of the...

As it is well know convexity and non linear optimization has been increasingly important in the last years in the study of many areas of economics. Systems of inequalities the maximun or minimun of a concave function over a convex set are among the most useful topics in microeconomics, game...

In this paper from the Negishi approach we analyze the concepts of structurally stable and structurally unstable economies on Banach's spaces. With this object we formalize the intuitive concept of similar economies. We show that in certain cases similar (or neighboring) economies can show no...

In standard economic growth theory it is assumed that labor force follows exponential growth, a not realistic assumption. As described in [4] the growth of natural populations is more accurately depicted by a logistic growth law. In this paper we analyze how the Ramsey growth model is affected...

In this paper we analyze the rationality that sustains the public investments on white elephants applied to the construction of tourist facilities in Mexico. The main result of this paper is that there exist two kinds of rationalities in the construction of white elephants. One is a similar...

The aim of this paper is to show that the incentive of hotel chains to invest in environmental quality depends on the demand in days of rest on the part of tourists and on the level of aggregate income. The framework is based on the theoretical model of horizontal differentiation a la Hotelling...

We consider an extensive form game to analyze the interdependence between environmental protection of resources, the activities related with the tourism and the behavior of a local population. We answer two questions: 1) Suppose that the central planner invest in tourist activities, has he...

This paper studies the impact of a correct valuation of the opportunity costs in individual decisions and social welfare applied to a tourism problem. Starting from the partial equilibrium model in Skak (2004), we show that the valuation of social welfare depends on the definition of individual...