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Accessibility is now a common way to measure the benefits provided by transportation–land use systems. Despite its widespread use, few measurement options allow for the comparison of accessibility across multiple urban systems, and most do not adequately control for market competition between demand-side actors and supply-side facilities in localized markets. In this article, we develop a measure of competitive access to destinations that can be used to accurately compare accessibility between regions. This measure stems from spatial interaction modeling and accounts for competition at both the supply and demand sides of analysis, regional differences in transportation networks and travel behavior, and any imbalance between the size of the population and the number of opportunities. We use this method to compute access to employment for Canada's eight largest cities to comparatively examine inequalities in accessibility, both within and between cities, and by travel mode. 相似文献
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Jeff Roquen 《European Review of History》2017,24(6):889-904
AbstractThe Janus-faced character of nineteenth-century Europe presents unique challenges to historians. Concurrent to spiralling industrial growth, working-class revolts, transatlantic migration and imperialism, the stark social and economic upheaval of the period has virtually belied the solidarity achieved on the Continent. In recent years, however, a number of superlative scholarly studies have excavated and illuminated the intellectual, legal and technological revolutions that ushered in an era of promise and potential unity. In this article, the author examines the degree of interdependence and interconnectedness across the Continent and the world by melding extant scholarship, introducing primary-source research, and offering new perspectives on the relationship of the increasingly globalized world and the European efforts to harness its potential by attempting to create lasting norms for peace and prosperity through international law and the benchmark concept of ‘humanity’. 相似文献
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For over a millennium, shell trumpets have been an important part of Southwestern US ritual practice. We investigate the distribution
of Southwestern shell trumpets, arguing that they are objects that are accorded animacy and can be used to track the history
of different social networks. Using ethnohistoric and ethnographic documentation, at least two traditions of historically
linked ritual practices are identified: one associated with serpent iconography and the other with curing, warfare, and sorcery.
These two traditions represent enduring dispositions that link various regions of the Southwest through the introduction and
adoption of ritual practices associated with migration and the transformation of late prehistoric societies. 相似文献
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Franklin J. James spent much of his career working to understand and improve our metropolitan communities. His interests were varied, ranging from impacts of fiscal and economic distress on urban areas to understanding socioeconomic forces reviving our central cities. During the last several years, Professor James had turned his attention to examining the positive economic impacts immigrants and ethnic communities have for reinvigorating our central cities-and beginning to investigate how non-native American's will impact America's suburbs in metropolitan settings
This preliminary exploration examines destination choices of immigrants, the characteristics of immigrant labor markets, and the determinants of immigrant earnings. The article begins to explore indirect evidence on the economic efficiency with which immigrants and native workers distribute themselves within and among labor markets as well as the assimilation process facing new immigrants. Evidence is presented to explain how the earnings of recent immigrants are affected by their human capital characteristics, their race, and ethnicity, and other factors. We reject the hypothesis that immigrants participate in a tertiary sector of urban labor markets and conclude that the determinants of immigrant earnings are similar enough to those of U.S. natives that it makes sense to assume that they work in the same primary labor market in which most native White Americans work. We find that urban labor markets for immigrants are surprisingly efficient, thus enabling immigrants to take advantage of economic opportunities. A major exception concerns what appears to be a powerful effect of discrimination on the economic progress of Black immigrants. 相似文献
This preliminary exploration examines destination choices of immigrants, the characteristics of immigrant labor markets, and the determinants of immigrant earnings. The article begins to explore indirect evidence on the economic efficiency with which immigrants and native workers distribute themselves within and among labor markets as well as the assimilation process facing new immigrants. Evidence is presented to explain how the earnings of recent immigrants are affected by their human capital characteristics, their race, and ethnicity, and other factors. We reject the hypothesis that immigrants participate in a tertiary sector of urban labor markets and conclude that the determinants of immigrant earnings are similar enough to those of U.S. natives that it makes sense to assume that they work in the same primary labor market in which most native White Americans work. We find that urban labor markets for immigrants are surprisingly efficient, thus enabling immigrants to take advantage of economic opportunities. A major exception concerns what appears to be a powerful effect of discrimination on the economic progress of Black immigrants. 相似文献
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Barbara J. Mills 《Journal of Archaeological Research》2002,10(1):65-117
Current research on Chaco Canyon and its surrounding outlier communities is at an important juncture. Rather than trying to argue for the presence or absence of complexity, archaeologists working in the area are asking different questions, especially how Chacoan political, economic, ritual, and social organization were structured. These lines of inquiry do not attempt to pigeonhole Chaco into traditional neoevolutionary types, but instead seek to understand the historical trajectory that led to the construction of monumental architecture in Chaco Canyon and a large part of the northern Southwest in the 10th through 12th centuries. This review discusses the conclusions of current research at Chaco including definitions of the Chaco region, recent fieldwork, histories of Chaco archaeology, chronology, paleoenvironmental reconstruction, demography, political organization, outlier communities, economic organization, social organization, ritual, violence, and the post-Chacoan reorganization. Although many issues are hotly debated, there is a growing concensus that power was not based in a centralized political organization and that ritual organization was a key factor in the replication of Chacoan architecture across a vast regional landscape. Exactly how ritual, social, and political organization intersected is a central question for Chaco scholars. The resolution of this problem will prove to be of interest to all archaeologists working with intermediate societies across the globe. 相似文献
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