Suchergebnisse

The conceptual model on the Global Food System (GFS) formulated by Clotet and others (2013), is articulated around four axes: Availability, Economy, Politics and Knowledge (knowledge, social behavior and culture). In this model, each of these axes has the same significance or weighting and for the quantitative study of results, concepts and methods of Compositional Data Analysis are applied (Jarauta-Bragulat et al., 2018). The purpose of this paper is to study and characterize the social perception in Catalonia of the relative importance (weighting) of each of the four axes of the aforementioned model. The study is carried out through the statistical analysis of the results of a survey completed by people who make up a random sample within the territory of Catalonia. The results of this survey are intended to analyze whether the equal balancing of the model axis is adequate or, on the contrary, the weights should be modified in that territory and, in this way, apply a more refined and representative weighting of reality. Several aspects are exposed and commented on: the design of the questionnaire, the data collection, the application of statistical sampling techniques (stratification by quotas and weighting of the strata), polish debugging techniques, as well as profiling techniques to differentiate groups between the variables of the food system and the sociodemographic characteristics that determine them. Based on the results, conclusions are stated. Main conclusions are: adequacy of the theoretical framework of the global food system to articulate the study (Colomer and Jarauta-Bragulat, 2016); adequacy of cluster analysis as a tool and obtaining four differentiated groups; obtaining a relative weight on the axes of the food system model; valuing availability and economy above the other two axes and, lastly, the need for greater food training for citizens for the collective benefit and for each of its members. ; El modelo conceptual sobre el Sistema Alimentario Global (SAG) formulado por Clotet y otros ...

El presente trabajo constituye la segunda parte de "El Sistema Alimentario Global: I - Definición de un espacio" (2014). Los objetivos de esta segunda parte son: (1) ilustrar y desarrollar la aplicación del modelo formulado en el trabajo anterior, (2) definir índices cuantitativos que permitan posicionar y caracterizar comparativamente el sistema alimentario desde una perspectiva global y (3) formular conclusiones en base al estudio cuantitativo realizado y los índices definidos. En esta segunda parte se aplica el modelo formulado en la parte I al estudio de un espacio agroalimentario, la Europa mediterránea, concretado en cuatro países: España, Francia, Grecia e Italia. El estudio se lleva a cabo con datos correspondientes a 12 variables agrupadas en los cuatro ejes conceptuales del modelo. Para cuantificar la posición relativa para cada variable y cada país, se define la denominada "ratio de posición (RP)" basada en la transformación CLR (centered log-ratio transformation) del Análisis de Datos Composicionales. Esta RP permite caracterizar y comparar la evolución de los indicadores para cada país, permitiendo además extraer conclusiones individuales y de conjunto. Para sintetizar la información dada por las diversas RP de cada variable, se propone el denominado "Índice TRIPTOLEMOS (ITRIn)" en el cual el subíndice n se refiere al número de variables consideradas. Este índice cuantifica la posición global del sistema alimentario de cada país en el entorno estudiado y según el modelo. Para finalizar se formulan conclusiones basadas en el análisis cuantitativo realizado en aplicación del modelo. The present paper is the second part of "The Global Food System: I - Definition of a space" (2014). The objectives of this second part are: (1) to illustrate and develop the application of the model formulated in the previous work, (2) to define quantitative indices that allow comparative positioning and characterization of the food system from a global perspective, and (3) to draw conclusions based on the quantitative study carried out and the defined indices. In this second part, the model formulated in part I, is applied to the study of an agrifood space, the Mediterranean Europe, made in four countries: Spain, France, Greece and Italy. The study is carried out with data corresponding to 12 variables grouped in the four conceptual axes of the model. In order to quantify the relative position for each variable and each country, the so-called "position ratio (RP)" is defined, based on the CLR transformation (centered log-ratio transformation) of the Compositional Data Analysis. This RP makes it possible to characterize and compare the evolution of the indicators for each country, allowing also to draw individual and joint conclusions. In order to synthesize the information given by the various RPs of each variable, the so-called "TRIPTOLEMOS Index (ITRIn)" is proposed, in which the subscript n refers to the number of considered variables. This index quantifies the global position of the food system of each country in the studied environment and according to the model. Finally, conclusions are drawn, based on the quantitative analysis carried out in application of the model. ; Peer Reviewed ; Postprint (published version)

El presente trabajo constituye la segunda parte de "El Sistema Alimentario Global: I - Definición de un espacio" (2014). Los objetivos de esta segunda parte son: (1) ilustrar y desarrollar la aplicación del modelo formulado en el trabajo anterior, (2) definir índices cuantitativos que permitan posicionar y caracterizar comparativamente el sistema alimentario desde una perspectiva global y (3) formular conclusiones en base al estudio cuantitativo realizado y los índices definidos. En esta segunda parte se aplica el modelo formulado en la parte I al estudio de un espacio agroalimentario, la Europa mediterránea, concretado en cuatro países: España, Francia, Grecia e Italia. El estudio se lleva a cabo con datos correspondientes a 12 variables agrupadas en los cuatro ejes conceptuales del modelo. Para cuantificar la posición relativa para cada variable y cada país, se define la denominada "ratio de posición (RP)" basada en la transformación CLR (centered log-ratio transformation) del Análisis de Datos Composicionales. Esta RP permite caracterizar y comparar la evolución de los indicadores para cada país, permitiendo además extraer conclusiones individuales y de conjunto. Para sintetizar la información dada por las diversas RP de cada variable, se propone el denominado "Índice TRIPTOLEMOS (ITRIn)" en el cual el subíndice n se refiere al número de variables consideradas. Este índice cuantifica la posición global del sistema alimentario de cada país en el entorno estudiado y según el modelo. Para finalizar se formulan conclusiones basadas en el análisis cuantitativo realizado en aplicación del modelo. The present paper is the second part of "The Global Food System: I - Definition of a space" (2014). The objectives of this second part are: (1) to illustrate and develop the application of the model formulated in the previous work, (2) to define quantitative indices that allow comparative positioning and characterization of the food system from a global perspective, and (3) to draw conclusions based on the quantitative study carried out and the defined indices. In this second part, the model formulated in part I, is applied to the study of an agrifood space, the Mediterranean Europe, made in four countries: Spain, France, Greece and Italy. The study is carried out with data corresponding to 12 variables grouped in the four conceptual axes of the model. In order to quantify the relative position for each variable and each country, the so-called "position ratio (RP)" is defined, based on the CLR transformation (centered log-ratio transformation) of the Compositional Data Analysis. This RP makes it possible to characterize and compare the evolution of the indicators for each country, allowing also to draw individual and joint conclusions. In order to synthesize the information given by the various RPs of each variable, the so-called "TRIPTOLEMOS Index (ITRIn)" is proposed, in which the subscript n refers to the number of considered variables. This index quantifies the global position of the food system of each country in the studied environment and according to the model. Finally, conclusions are drawn, based on the quantitative analysis carried out in application of the model. ; Peer Reviewed ; Postprint (published version)