排序方式: 共有70条查询结果,搜索用时 15 毫秒
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Blanca de-Miguel-Molina Jose-Luis Hervas-Oliver Rafael Boix Maria De-Miguel-Molina 《European Planning Studies》2012,20(8):1263-1280
This paper examines the existence of regional agglomerations of manufacturing, service and creative industries, the relationship between these industries and the wealth of regions and their industrial structure. Through an analysis of 250 European regions, three important conclusions can be inferred from the results obtained in this paper. The first is that creative industries play an important role in the wealth of a region. The second is that the most creative regions are characterized by having more high-tech manufacturing industries than the rest of the regions although the number of low-tech manufacturing firms is similar. Lastly, the industrial structure of each region has a greater influence on regional wealth than the existence of industrial agglomerations. The importance of this paper resides in the fact that up until now no analysis has demonstrated that creative industries are the most important industries in regional wealth. 相似文献
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This study focuses on integration processes in European Research and Development (R&D) by analyzing the spatiotemporal dimension of three different R&D collaboration networks across Europe. The studied networks cover different types of knowledge creation, namely project‐based R&D networks within the European Union (EU) Framework Programmes (FPs), co‐patent networks, and co‐publication networks. Integration in European R&D—one of the main pillars of the EU Science Technology and Innovation policy—refers to the harmonization of fragmented national research systems across Europe and to the free movement of knowledge and researchers. The objective is to describe and compare spatiotemporal patterns at a regional level and to estimate the evolution of separation effects over the time period 1999–2006 that influence the probability of cross‐region collaborations in the distinct networks under consideration. The study adopts a spatial interaction modeling perspective, econometrically specifying a panel generalized linear model relationship, taking into account spatial autocorrelation among flows using eigenfunction spatial filtering methods. The results show that geographical factors are a lower hurdle for R&D collaborations in the FP networks than in co‐patent networks and co‐publication networks. Furthermore, it is shown that the geographical integration is higher in the FP network. 相似文献
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Rafael González‐Val 《Journal of regional science》2010,50(5):952-972
ABSTRACT This paper analyses the evolution of city size distribution in the United States throughout the twentieth century. It tests the validity of two empirical regularities studied in urban economics: Zipf's law (the rank‐size rule), and Gibrat's law, or the law of proportionate growth. The main contribution of this work is the use of a new database with information on all the cities (understood as incorporated places), without size restrictions. Our results enable us to confirm that Gibrat's law holds (weakly), and that Zipf's law holds only if the sample is sufficiently restricted at the top, not for a larger sample. 相似文献
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The historiography on Latin America's Cold War has grown significantly in the last few years. But though the field has expanded in ways that include new perspectives, much could be gained by engaging more closely with voices from the South or works produced by scholars based in Latin America. Similarly, more nuanced analytical framings that pay closer attention to post-World War II development, particularly in South America, would also enrich our understanding of the complex and multidimensional experiences of the Cold War in the region. We demonstrate this point by examining the works of rising Latin American scholars working on the hemispheric and international dimensions of the Latin America's Cold War, showing that this literature needs to be integrated into existing accounts. 相似文献
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Recent data from the site of Cerro Lampay, a Late Archaic Period compound in central Peru, sheds light on the role of ritual and architectural construction in the emergence of social complexity in the Central Andes. Excavations at this site have provided a detailed documentation of the building process that ended in the entombment of architectural compounds, including a remarkable sequence of construction events preceded by the processing and consumption of foodstuffs. There was not a single, large-scale construction event, but several small-scale events that were accompanied by consumption activities. This pattern strongly suggests a permanent reinforcement of ties and commitments through feasting, which was required in order to finish the construction process. This scenario supports the idea of emerging leadership capable of mobilizing labor for the construction requirements. Nevertheless, the reliance on feasting as ritual practices, and the small scale of these events, suggests a limited power capacity and a weakly formalized authority, which needed to be constantly reinforced through the inferred ritual practices. 相似文献
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Martínez Sánchez Rafael M. Vera-Rodríguez Juan Carlos Pérez-Jordà Guillem Moreno-García Marta Bokbot Youssef Peña-Chocarro Leonor 《African Archaeological Review》2021,38(2):251-274
African Archaeological Review - This study focuses on the chronostratigraphic sequence of the Cave of Kaf Taht el-Ghar (Dar Ben Karrich, Tétouan, Morocco) excavated in 2012 in the framework of... 相似文献