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991.
In this paper, we analyze the role of culture in determining whether, or not, an individual is a homeowner. We use data on first-generation immigrants who arrived in the United States under 6 years old. Following the epidemiological approach, any dissimilarity in the proportion of homeowners by country of origin may be interpreted as a consequence of cultural differences. Our estimates indicate that there is a positive and statistically significant relationship between the cultural proxy and the immigrants’ choice of home-ownership. Additionally, we present evidence of different mechanisms of transmission of culture, which reinforces our results on the cultural effect.  相似文献   
992.
This article investigates the incidence of agglomeration externalities in Ecuador, a small-sized, middle-income developing country. In particular, we analyze the role of the informal sector within these relations, since informal employment accounts for a significant part of total employment in the developing countries. Using individual level data and instrumental variable techniques, we investigate the impact of spatial externalities, in terms of population density, local specialization and urban size, on the wages of workers in Ecuadorian cities. The results show that spatial externalities matter also for a small developing country. Moreover, analysis of the interaction between spatial externalities and informality shows that, on average, workers employed in the informal sector do not enjoy significant benefits from agglomeration externalities. Finally, by investigating the possible channels behind spatial agglomeration gains we show that the advantages from agglomeration for formal sector workers may well be accounted for by better job-quality matches and, to a lesser extent, by learning externalities. For informal sector workers, our findings also suggest possible gains from job changes, which offset a penalty for remaining employed in the same occupation.  相似文献   
993.
The role of cities in fostering innovation has for long been taken for granted. Agglomeration and the knowledge spillovers generated in dense urban environments have been considered fundamental drivers of innovation. This view has, however, become challenged by research questioning the returns to physical agglomeration and local networking, placing instead more emphasis on the importance of interregional and international collaboration, and on innovation in peripheral regions. This paper delves into the debate on the role of cities for innovation by examining the interplay between urban location and local collaboration in Norway. It uses data from the Community Innovation Survey for 2006–2010 to map out the geographical dimension of R&D collaboration in Norwegian firms with a view to assessing whether different types of R&D collaboration in urban and rural locations affect firms’ propensity to innovate. The results show that local collaboration is associated with increased process and organisational innovation, while it does not produce higher levels of product or marketing innovation. Conversely, international collaboration is connected with higher probabilities of product, new-to-market and marketing innovations. Furthermore, location in urban or rural areas makes no difference for most innovation outcomes in Norway when other characteristics are controlled for. Location in cities also does not shape the returns to local R&D collaboration. Hence, the role of cities for innovation in Norway, whether in themselves or as sites for dense local interaction, is less relevant than the urban innovation literature would predict.  相似文献   
994.
本篇着重分析了皮央石窟IV区32窟(护法殿)壁画中萨迦派及俄派祖师传承以及护法、供养场景,综合探讨了壁画年代、艺术风格及教派影响范围,认为此窟壁画的绘制年代在16世纪晚期至17世纪初,具有藏中地区艺术风格,反映出当时萨迦俄派在西藏西部普兰、古格地区具有较大影响力。  相似文献   
995.
The study of the fish bones from the Neolithic shell midden of Suwayh 1, excavated in the 2000s, identified a total of 1060 identifiable fish bones, from 23 families, 33 genera and 28 different species. Radiocarbon dating demonstrates that the sites date to the early 6th to mid 5th millennium BC. The results follow an eight-phase chronology highlighted by an earlier malacological study. The most important taxa were the Carcharhinidae (requiem shark), Rhinopteridae (cownose rays), Sparoidea (Sparidae and Lethrinidae: sea breams and emperors) and Ariidae (sea catfishes). The results of the fish study show that the Suwayh lagoon must have gradually opened up to the sea and been populated with mangroves. The unique presence of so many sharks at this site seems to indicate that the inhabitants had a special interest in shark fishing and that their location was ideal for this specialised activity. Two types of fishing nets and hooks have been discovered, which require the use of different fishing techniques.  相似文献   
996.
鲁迪秋 《世界历史》2020,(1):59-73,I0004
19世纪初期,受国内外局势的推动,女性慈善社团在美国大量涌现。成立于1811年的波士顿科班社就是这股浪潮的产物。以科班社为代表的女性慈善社团在美国白人女性公民身份的初步建构中起到了重要作用。女性慈善社团的日常运作为白人女性提供了扮演美国公民的机会与训练。在起草与签署社团章程、向立法机构请愿并以法人身份行使法律和经济权利、通过选举和表决来解决社团事务的过程中,白人女性确立起公民意识。此外,女性慈善社团开展的活动进一步为女性成员提供了以公民身份行动的平台。通过参与慈善活动,美国白人女性能够把经济优势转化为公共影响力,关注家庭以外的公共事务,进入公共领域。公民意识的确立与公民身份的践行,为日后美国白人女性追求完整公民身份奠定了基础。  相似文献   
997.
998.
This article analyses the visual figuration of children during the Chilean Popular Unity government (1970–1973) in a diverse archive of photographs, posters, album covers, magazines, and comics. First, it reads the realist representation of children in photography, which emphasises the dramatics of poverty as a form of establishing a photographic “civil contract” (Azoulay, The Civil Contract of Photography, 2008). Second, it interprets posters and texts concerning the Allende government’s Plan de Leche (Milk Plan) as an affirmative biopolitics. It concludes by showing that the children on illustrated posters are the idealised version of childhood projected by adults as a way of imagining a coming community.  相似文献   
999.
Journal of Maritime Archaeology - This study analyses nautical harbour activities and their spatial distribution using a high-resolution method of wind-wave hindcasting, in order to identify the...  相似文献   
1000.
African Archaeological Review - The emergence of socio-political differentiation is a core theme in world prehistory, and the West African archaeological record offers unique insights into the...  相似文献   
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