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151.
We study the external linkages of clusters through a typology of forms of temporary proximity (from foreign business meetings to co-located projects). We suggest that here business air travel and information and communication technologies have given significant advantages to small firms. We investigate these arguments through a case study of the Irish software industry in Dublin. Comparing indigenous and multinational corporation (MNC) firms confirms that indigenous firms are as travel intensive as MNCs but are linked to fewer destinations. We conclude that air travel enables small firms to go global without the support of collective cluster institutions. 相似文献
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153.
Robert J. Blumenschine Fidelis T. Masao Joanne C. Tactikos James I. Ebert 《Journal of archaeological science》2008
Ongoing excavations at Olduvai Gorge, Tanzania, reveal tremendous variability among stone artifact assemblages across the Plio-Pleistocene Olduvai Lake Basin during Bed I and lower Bed II times. Theoretically, stone artifact traces of Oldowan hominin land use are determined by the distribution of larger mammal carcasses and arboreal refuge from predation as well as proximity to stone material sources. 相似文献
154.
James Denbow Jeannette Smith Nonofho Mathibidi Ndobochani Kirsten Atwood Duncan Miller 《Journal of archaeological science》2008
Excavations at the site of Bosutswe on the eastern edge of the Kalahari Desert in Botswana have uncovered over 4 m of deposit ranging in age from CE 700 to 1700. Our research has produced quantitative and qualitative measures of the material and ecological dimensions that structured the everyday actions and behaviors through which social identities were constituted, maintained, and transformed during the period when the polities of Toutswe, Mapungubwe, Great Zimbabwe and Khami rose to power. By examining the material dimensions that underlay shifting relations of production, exchange, and social stratification we are able to contextualize the social judgments that ascribed value to material goods and food ways, while specifying the ways these were used to create and naturalize social relationships and power differentials. Stable isotope analyses, combined with evidence of vitrified dung, further enable us to suggest changes in herd management strategies used by the inhabitants of the site to compensate for ecological changes brought about by long-term occupation, while at the same time enabling them to economically tie subordinates to them as social divisions became more rigidly defined after CE 1300. The cultural and economic changes that took place at Bosutswe thus directly impact our understanding of the social transformations that immediately preceded contemporary configurations of ethnicity in Botswana. 相似文献
155.
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
156.
James K. Boyce 《Development and change》2002,33(5):1025-1048
Over the past decade, aid donors have pledged billions of dollars to support peacebuilding efforts in collapsed states and war–torn societies. Peace conditionality — the use of formal performance criteria and informal policy dialogue to encourage the implementation of peace accords and the consolidation of peace — could make aid a more effective tool for building peace. In Bosnia, for example, donors have attempted to link aid to the protection of human rights, co–operation with the international war crimes tribunal, and the right of people displaced by ‘ethnic cleansing’ to return to their homes. Yet the conventional practices and priorities of aid donors pose constraints to the exercise of peace conditionality. This article examines several of these constraints, including the reluctance of donors (particularly the international financial institutions) to acknowledge responsibility for the political repercussions of aid; the competing foreign–policy objectives of donor governments; the humanitarian imperative to aid people whose lives are at risk; and the incentive structures and institutional cultures of donor agencies. 相似文献
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159.
James Simmie 《European Planning Studies》2002,10(2):201-214
This paper reports the findings of an ESRC funded study of innovation in five European cities. It is argued that the contemporary emphasis on local production clusters as the basis of economic growth provides only a limited explanation, in certain types of cities, of what drives growth. The argument developed here is that export base theory should be revisited as a more likely explanation of virtuous circles of growth. The evidence presented suggests that such circles are composed of innovation and trade in the context of the types of externalities found in core metropolitan international gateway cities. 相似文献
160.