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This paper develops a location-allocation model of Lösch's central place theory that maximizes the number of firms that can coexist in the market, subject to range, threshold, hierarchy, and other constraints. F.o.b. costs, economies of scale, and elastic demand are included. Consumer behavior postulates concerning the “nearest center hypothesis” and the “indifference principle” are formulated as nonlinear constraints but not used during solution. Methods are developed for simulating the continuous, infinite plain with a discrete, bounded network by use of an outer overflow network and a symmetrical market area constraint. The model is tested by applying it to a uniform lattice network and comparing the results to the expected pattern of nested hexagons. Solutions consistent with the k = 3, 4, and 7 patterns are generated by changing threshold values. However, remaining inconsistencies appear to be due to the inability to express the consumer behavior laws as linear constraints, to the bounded and discrete nature of the network, and to the objective function being the sum of integer variables. The long-run purpose of developing and validating a location-allocation model of a location theory is to use it to relax the theory's restrictive assumptions and to apply the theory to nonuniform regions.  相似文献   

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A dynamic central place theory is formulated as a simulation model in which retail activities, described by cost equations, and consumers, described by spatial interaction equations, interact to generate a central place system. The behavior of the model is then examined. Simulation results show that the basic character of the system—whether it is agglomerated or dispersed—depends primarily on a single parameter in the interaction equation, and only secondarily on the specification of the cost function. The results are highly robust in that they are largely independent of the initial sizes and locations of centers, and even independent of the type of interaction equation used. The patterns generated appear plausible.  相似文献   

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Certain aspects of Lösch's classic work on the network of markets and the system of networks have not yet been clearly explained in the literature. Lösch did not describe his derivation procedures in full, and apparent printing errors in certain förmulae confuse the issue further, with the result that several recent texts reproduce Lösch's diagrams but offer no explanation of how they are constructed. Accepting the network of hexagonal market areas for a continuous system of markets, given an even but discrete distribution of population, the derivation from first principles of the complete system of different market areas is presented. Apparent errors in the translated text of Lösch's work are corrected. Limitations in some other authors' work and accordance with earlier empirically derived formulae are mentioned. The production of “city-rich” and “city-poor” sectors is shown to be a constraint on, rather than a result of, the system, and Lösch's statement that the coincidence of centers is maximized is clarified. The extension of the Lösch system to the internal tertiary structure of the city is presented and attention drawn to the empirical attractiveness of this approach.  相似文献   

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This article analyses the relationships between traditional healing and biomedical practices found in contemporary Central Asia from the late Soviet period into the early twenty-first century. Gendered demarcation of space, the roles of women as caregivers and protectors of spiritual health in legends and emphasis on life cycle rituals position women at the centre of discussions of healing practices in Central Asia. Through historical and ethnographic work conducted in the Kyrgyz Republic, this article offers a view of women as practitioners and recipients of healing and as producers of knowledge about health and healing.  相似文献   

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The aim of this paper is to discuss local and regional planning and development practices in a post‐socialist country such as Estonia. Two approaches — central places and network theories — are used as a conceptual basis. According to the first hypothesis, planning and development of social infrastructure (e.g. schools, sports halls) has remained based on the central place theory — as an outdated planning approach — in Estonia. The second hypothesis argues that while, on the one hand, the application of the network paradigm and increased cooperation between local communities would considerably save public resources, on the other hand, because of the path dependency of Soviet centralized planning and development practices, the networking and lobbying takes place vertically rather than horizontally. This restricts both administrative cooperation and networking on the local and regional levels. The paper consists of three parts. The first part describes the turn in Western planning theory: the shift from normative top‐down planning to a bottom‐up approach and networking. The second part analyses critically the Soviet and post‐Soviet planning theory and practices: the planning and development culture created during the Soviet era. Finally we present a case study of a community planning procedure in the Suure‐Jaani locality — a good example of the influence of historical changes in the settlement system and planning culture of the past on current development.  相似文献   

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In the final quarter of the nineteenth century, men and women in the French communes of the central Vaucluse began to defer or neglect vital Catholic rites of passage. Against a backdrop of turbulent regional politics and economic upheaval, formal adherence to church doctrine declined sharply, never again to regain its previous levels. This article assesses the religious gestures of individuals and communities through the analysis of their sacramental participation, the only recorded response of Catholics to the church's presence in their lives. The implementation of the lay republic in the community by means of both local and national secularizing policy from 1878 to 1905 was the primary precipitant of general, dramatic decreases in formal Catholic practice. It was only upon the official secularization of communal society and politics that significant numbers of central Vauclusiens began to relinquish their attachment to Catholic rites of passage surrounding birth, marriage, and death.  相似文献   

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Books reviewed in this article:
William M. Reddy, The Navigation Of Feeling: A Framework For The History Of Emotions.  相似文献   

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