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ABSTRACT. This paper develops a model to examine the economic interaction between central places and their hinterlands. The model allows interindustry linkages and upward trade flows in an urban hierarchy system. Trade balance equilibrium between hierarchical levels is established by direct mutual interlevel trade, rather than by indirect trade via the rural sector. The economic base multipliers generally increase with city size but occasionally they could be smaller than those of lower places. A continuous urban hierarchy is formed due to their relative location within the system, not to unspecified randomness. 相似文献
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The Halifax downtown area has experienced considerably change in the amount, type, and location of retailing in this century, exemplifying many processes and patterns typical of North American cbds. Owing to increased competition from suburban business districts, retail activity has remained fairly constant in absolute terms but has declined relative to the rest of the urban area. In response, the mix of downtown retailing has been reoriented to emphasize the district's comparative advantages, cbd retailers have differentiated their goods and services from those of suburban competitors but have also attempted to provide settings and amenities - notably, indoor malls and off-street parking - which mimic those found at suburban shopping centres. Such changes are investigated in this case study by means of two broad questions: (1) how and why has the cbd's overall mix of retail types changed through time, and (2) how and why have changes occurred in the location of retailing and retail types within the cbd? 相似文献
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