El sistema alimentario global: I-Definicion de un espacio
Creators: name: Ballus, R.
name: Xena, Y.
name: Bragulat, E.
name: Zaragoza, F.
name: Ballus, R.
name: Xena, Y.
name: Bragulat, E.
name: Zaragoza, F.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: disponibilidad
subject: economia
subject: politica
subject: saber
subject: alimentacion
subject: sociedad
subject: sistema dinamico
subject: modelizacion matematica
subject: prospectiva
subject: availability
subject: economy
subject: politics
subject: knowledge
subject: food
subject: society
subject: dynamic systems
subject: mathematical models
subject: prospective

description: Los autores desarrollan su modelos de sistema alimentario global, pesentado conceptualmente en anteriores publicaciones, basado en cuatro ejes basicos (disonibilidad, economia, politica y saber) dandole una estructura compresnbile, abierta y en la que se la plica una metodologia matematica que permite conocer la evolucion de los parametros y su prospectiva. Para ello, en el presente trabajo se pasa de los conceptos cualitativos a los cuantitativos. Cada eje se descompine, en tres subejes dando un total de 12, que identifican aspectos especificos de los pirimarios y que definen en este espacio las actividades y conceptos fundmentales del sistema agroalimentario y de tal forma que puedan seguir desarrollandose sus contenidos en aspectos de aun mas detalle, en un desarrollo fractal de base tetraedica. Para cada subeje se propone un primer parametro de evaluacion en base a valores en unidades, obtenibles en unidades de tiempo, habitualmente anos, de datos fiables publicados y compatibles con el modelo de estudios evolutivos y prospectivos presentados en el que se propone una variable vectorial para cada eje que toma valores en el simplex de tres partes y ajuste a un modelo lineal en coordenadas ILR (isometric logratio transformation). El modelo normaliza una estructura que da relieve al espacio agroalimentario global y perminte realizar estrategias propsectivas sobre el mismo en cada parametro y entre ellos. The authors develop their model of global food system, presented conceptually ine arlier publications, based on four basic axes (availability, economy, politics and knowledge) to give it an understandable open structure, and applying a mathematical methodology to it to enable the evolution of the parameters and its prospects to be known. To this end, this current study goes beyond the qualitative concepts to the quantitative ones. Each axis is broken down into three sub-axes giving a total of 12, that identify specific aspects of the primary ones and define the fundamental activities and concepts of the agri-food system in this space and in such a way that their contents can be developed further in even greater detail, in a fractal development on a tetrahedral base. A first evaluation parameter is proposed for each sub-axis based on values in units, that can be obtained, time units, years usually, from reliable published data and compatible with the model of evolutionary and prospective studies presented in which a variable vector for each axis is proposed that takes values in the simplex of three parts and adjusted to a lineal model in ILR ( isometric logratio transformation) coordinates. The model standardises a structure that highlights the global agri-food area and allows prospective strategies to be carried out the same subject, on each parameter or between them.