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ABSTRACT. In a simple urban model, where the only spatial distinction made is between center and suburb, we introduce a uniform distribution of preferences for land. Under a logarithmic utility function, we examine how the location and consumption decisions of individuals differ in consequence of their different preferences for land. Comparative statics indicate that the qualitative response of the city at equilibrium to changes in per capita income and transportation cost is not affected by the introduction of such heterogeneity. Possible extensions are also briefly discussed. 相似文献
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Yorgos Y. Papageorgiou 《Journal of regional science》2014,54(3):450-461
The existing empirical literature about polycentric population density has focused on the urban scale, and the alternative models proposed in that context have been justified using heuristic arguments. This paper describes how polycentric density distributions can, in general, be endowed with a theoretical framework which differs from the existing literature with respect to the treatment of centers: instead of assuming that they represent places of work, it assumes they are places that provide goods and services to households. This imposes a hierarchical structure on the model, which allows replacing the set of distances to all centers (typically used in the existing literature as the same explanans irrespectively of location) with a smaller set of distances that corresponds to the number of levels in the hierarchy and varies with location. The central‐place framework used also provides a direct link between a polycentric model and the Clark formula, in the sense that the latter can emerge through a smoothing procedure of the former. Finally, in the context of central places, the scope of related empirical investigations can be extended naturally from the urban to the regional scale. This is the scale of a simple test presented here, which has been specifically included to support the corresponding theoretical arguments about the structure of a polycentric density gradient. The paper concludes with some expected problems and advantages of applying these ideas to the urban scale. 相似文献
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Sophia Papageorgiou Maurice Arnold Jacques Laborel Stathis C. Stiros 《International Journal of Nautical Archaeology》1993,22(3):275-281
The Mavra Litharia cove, between Akrata and Derveni, in the North Peloponnesian coast (Central Greece), has been identified as the site of the harbour of the Hellenistic Aigeira, one of the very few natural harbours along the uplifting, fault-controlled North Peloponnesian coast.
Geomorphological, marine biological and archaeological data as well as radiocarbon dating of marine fossils testify to a 2m relative land uplift since Hellenistic times (around 2000 years bp), part of which (1 m at least) was probably seismic, dated to the Byzantine period (AD 900–1200). This palaeoseismic event, as well as others deduced from archaeological data, are not included in the historical seismology records, but had probably dramatic impacts on the economic and cultural history of ancient Aigeira.
The amplitude of uplift at Mavra Litharia is of the same order of magnitude as submersion dominating the Aegean and, with the exception of the arc, the higher Holocene uplift rate recorded in this area and the surrounding regions. This result is consistent with the Quaternary uplift history of North Peloponnesus. 相似文献
Geomorphological, marine biological and archaeological data as well as radiocarbon dating of marine fossils testify to a 2m relative land uplift since Hellenistic times (around 2000 years bp), part of which (1 m at least) was probably seismic, dated to the Byzantine period (AD 900–1200). This palaeoseismic event, as well as others deduced from archaeological data, are not included in the historical seismology records, but had probably dramatic impacts on the economic and cultural history of ancient Aigeira.
The amplitude of uplift at Mavra Litharia is of the same order of magnitude as submersion dominating the Aegean and, with the exception of the arc, the higher Holocene uplift rate recorded in this area and the surrounding regions. This result is consistent with the Quaternary uplift history of North Peloponnesus. 相似文献
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G. J. Papageorgiou 《Geographical analysis》1978,10(4):373-385
This essay examines the issue of consistency between certain short-run effects of urban policy and the corresponding incidence of policy. Short-run effects are politically important in democracies because they determine popular support. Incidence, on the other hand, is socially important because it defines the level of welfare and its distribution among citizens. It is seen that the two are not necessarily consistent. Inconsistencies arise within both the social and the spatial realms of urban policy. Such inconsistencies depend upon individual preferences, urban morphology, urban technology, and upon the structure of society itself. 相似文献
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Marilena Papageorgiou 《European Planning Studies》2017,25(10):1818-1833
Greece is a country undergoing major changes in its course towards recovering from the recession and meeting the desirable economic standards. Over the past years, a series of legislative acts have reformed not only the sectoral policies and guidelines for the development of the main economic sectors of the country, but also the spatial planning policy and system, which in the period of just two years (between 2014 and 2016) underwent a double reform (Laws 4269 and 4447). Planning procedures became more ‘favourable’ to investments and the market’s needs. However, despite this early shift towards a more flexible and neoliberal approach, competitiveness and economic growth have not yet been achieved, whilst spatial planning is still ‘on hold’, leading to further entrepreneurial hesitancy and to a further delay in meeting the State’s requisite economic goals. The paper aims to contribute to the ongoing discussion regarding the future of spatial planning in Greece, in view of achieving economic stability and prosperity. The paper concludes that a suitable spatial planning model for Greece should prioritize public interest and territorial justice, in a way that it will not asphyxiate or discourage private sector initiatives that are so needed for the economic recovery. 相似文献
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Cluster analysis is the most widely used multivariate technique in archaeometry, with the majority of applications being exploratory in nature. Model‐based methods of clustering have their advocates, but have seen little application to archaeometric data. The paper investigates two such methods. They have potential advantages over exploratory techniques, if successful. Mixture maximum‐likelihood worked well using low‐dimensional lead isotope data, but had problems coping with higher‐dimensional ceramic compositional data. For our most challenging example, classification maximum‐likelihood performed comparably with more standard methods, but we find no evidence to suggest that it should supplant these. 相似文献