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ARTÍCULO
TITULO

Explanatory variables of purchase flows of food in IX Region of Chile. Cien. Inv. Agr. (In English) 34(2):63-74.

Berta L. Schnettler    
Alfonso Rebollo    

Resumen

The unequal distribution of commerce displaces purchase flows from the smaller centers to those with greater commercial facilities in southern Chile, thus, causing the re-routing of commercial expenditures. To determine the effect of the attraction and restriction variables on the purchase flows of food supplies in Regions VIII, IX and X of Chile, the traditional gravitational model was used. The purchasing center attributes we established were population, monthly domestic income, number of business licenses and the commercial area of establishments selling food. The time and distance of displacement were used as restriction variables. Based on these results, consumers that travel outside their district of origin to buy food supplies choose interurban commercial centers with the greatest population. These centers concentrate people with the greatest incomes, and the commercial supply, determined by number of businesses and area used for retail purposes, was greater in those areas. Consumer income was not a signifi cant interurban deciding factor. This was explained by the small number of commercial facilities that force consumers to travel from their districts of origin to other centers in order to obtain supplies. La desigual distribución del equipamiento comercial provoca desplazamientos de compra desde los centros de menor tamaño hacia los de mayor dotación comercial, provocando evasiones de gasto comercializable o flujos comerciales. Para determinar el efecto de variables de atracción y de restricción en los flujos comerciales de alimentos en la VIII, IX y X Región de Chile, se estimó el modelo de gravitación tradicional. Los atributos de los centros de compra fueron población, ingreso monetario mensual de los hogares, cantidad de patentes y la superficie comercial de establecimientos de venta de alimentos. Como variable de restricción se utilizó la distancia y el tiempo de desplazamiento. Los consumidores que realizan desplazamientos de compra fuera de la comuna de residencia para adquirir alimentos seleccionan los centros de compra interurbanos de mayor población, que concentran los hogares de mayores ingresos, y cuya oferta comercial es superior, medida en número de comercios o tamaño de la superficie de ventas. El ingreso de los consumidores no fue significativo para realizar desplazamientos de compra interurbanos, porque la baja dotación comercial en las comunas de origen obliga a los consumidores a desplazarse.

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