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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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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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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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Penny Koutrolikou 《对极》2016,48(1):172-192
Through the notion of “conjuncture” this paper explores the interplay of urban crises that have been unfolding in the city of Athens during the past 7 years (2008–2014). By focusing on specific “critical moments” that have significantly influenced the narratives, discourses and subsequent policies concerning “Athens in crisis”, it examines a number of intertwined approaches and tactics that shaped the governmentality of such crisis. These approaches and tactics, that work in tandem, include emergency‐driven policies and politics; politics of fear that occasionally transform into geographies of fear; processes of defining the “public” and “public enemies”; and redefinitions of (il)legalities. Yet, they have repercussions on people, places and politics. In this context, certain issues are deemed critical or urgent while others do not or are even obscured.  相似文献   
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SUMMARY: The abundance of goods in the modern world has a tendency to prejudice interpretation of their value, but the way people value their goods is complex, relative and changeable — scarcity is just one factor. There is a long history of value theorization across the social sciences, but archaeological considerations of value remain uncommon and focused on prestige goods. In this paper, I review alternative conceptions of value through the lens of the modern world, with an example of Spode creamware used by a governor in the early decades of colonial Sydney. I argue that the process of devaluation, through discard and waste, offers a unique archaeological understanding of the shifting values people of the modern world placed on commodities.  相似文献   
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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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