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A longitudinal approach to migration behavior makes it possible to identify a sufficient condition for positive associations between rates of in-migration and rates of out-migration in the same regions. The longitudinal approach centers on the intervals of time that individuals spend in a region, and these intervals can be analyzed in terms of probability distributions or the equivalent hazard functions or survivor functions. Differences in the distributions of these intervals between subpopulations whose residence in a region begins with in-migration and subpopulations whose residence begins with other events are sufficient for temporal variations in rates of in-migration to produce variations in out-migration rates in subsequent periods of time. Tests for such differences are performed using data from the National Longitudinal Survey of Youth. 相似文献
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Mark Bailey 《Journal of Medieval History》1993,19(4)
The controversy over the fortunes of English towns in the later middle ages has tended to generate more heat than light. Much of the evidence employed in this debate has been drawn from the larger English towns, but this essay suggests a widening of the research agenda to include a more systematic assessment of small towns and village markets. Although weakened by the reduced demand for grain after the Black Death, these places competed for the growing local trade in basic consumer goods. Evidence from northeast Hertfordshire reveals that this competition resulted in a significant restructuring of the hierarchy of local marketing centres, and a decline in the ability of seigneurial and urban authorities to regulate trading activity. 相似文献
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Lucien Georgeson Federico Caprotti Ian Bailey 《Geografiska annaler. Series B, Human geography》2014,96(3):217-229
Cleantech has emerged in the last decade as a major new investment sector at the forefront of the green economy. It responds to the need for innovative technologies to combat the impact of global environmental, climate and resource trends. Focusing on the cleantech sector, this article explores the central importance of relationality within the financial domain of the green economy. The central aim of this article is to deepen understandings of the operation of cleantech investment by examining the decision‐making processes of cleantech actors, how these are influenced by (and influence) cleantech investment networks, and the relationships between these factors and the macro‐level drivers and discourses focused on the cleantech sector. A relational economic geography approach is used in conjunction with other frameworks (spanning the cultural, structural and actor‐network dimensions of cleantech investment) to investigate: how cleantech investors define the sector; the macro‐ and micro‐level drivers of cleantech investment; and how cleantech networks form and operate to create and disseminate cleantech discourses and to generate the mutual trust and information sharing needed to secure cleantech investments. In so doing, the article seeks to shed greater light on the micro‐level processes contributing to the creation and growth of cleantech investment markets as an essential catalyst and component of the green economy. 相似文献
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Keiron Bailey 《Gender, place and culture : a journal of feminist geography》2007,14(5):585-608
In light of recent reflexive ethnography based on frameworks of performativity, this work develops a phenomenological interpretation of my white, male, gaijin (foreign), English-speaking positionality inside Japan's private English conversation schools (eikaiwa). These eikaiwa are ubiquitous in modern urban areas. They are patronized predominantly by women who seek career enhancement, study and/or work abroad, and international romance. To understand the gendered participation patterns inside the eikaiwa I develop a phenomenological understanding of my positionality through a framework based on Occidentalism. This framework is grounded in the ideo-geographically specific notions of seken (surveillance) and akogare (desire). Akogare is instantiated and intensified inside eikaiwa by the performative aspects of staff, students and instructor practices in addition to eikaiwa texts and advertising and popular media discourses while seken, especially gender-normative seken, directed at women is minimized. This framework allows me to present a nuanced account of the interaction of my positionalities with those of the informants. 相似文献
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The idea of strategic planning for networks of cities and towns, encapsulated in the polynuclear urban region concept, has attracted growing interest in many European regions. Key themes include cooperation between neighbouring cities and coordination between functional policies. This article explores the theoretical benefits, including increased economies of scale and improvements in the strength and quality of internal interactions. It also applies these arguments to Central Scotland. As the largest concentration of economic activity in Scotland, with a high level of organizational fragmentation but growing cross boundary issues and coincident growth pressures and deficiencies, there are potential gains from a common strategic perspective. These include improved communications for inter‐firm collaboration and trade, more efficient labour and housing market interactions, and an institutional framework for planning and marketing important regional assets. Closer cooperation within a regional perspective could help the Central Belt to function better as an economic unit and facilitate its ongoing development. 相似文献