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This article examines the historical processes that shaped the development of archaeological practice in Angola during the Portuguese colonial period and the aftermath of political independence. Using published works, unpublished reports, and photographic records, we examine the research themes, actors, scholars, and institutions that influenced archaeological research in the country. We also used documents and museum collections in Angola and Portugal to create a GIS database of Angola’s archaeological findings. This study highlights the events, personalities, and priorities that motivated earlier investigations, and the geographical distribution of prehistoric sites. We hope this study will be a resource for guiding future archaeological research in Angola.

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Setting limits on government action is critical to economic development. Some forms of government organization, such as market-preserving federalism, seem effective to protect property rights in the long term with good results for economic efficiency. Spain endowed its regions with “Statutes of Autonomy” in the 1980s thus moving from a centralized to a decentralized form of government. It renewed and expanded some of the statutes in the 2000s. This article investigates whether these two waves of regionalization, which had their own characteristics in each region, had led to positive effects on economic performance. Using a novel autonomous region/country-matched balanced sample for the period 1950–2016, we apply the synthetic control method and compare the economic growth trajectories of Spanish regions with their synthetic control groups not affected by the regionalization process. We show that the first wave of “Statutes of Autonomy” had a positive but temporary economic growth impact. By contrast, the second wave of regionalization of the 2000s is associated with a negative growth impact.  相似文献   
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中国自然保护区生态旅游开发研究刍议   总被引:24,自引:0,他引:24  
刘继生  孔强  陈娟 《人文地理》1997,12(4):20-24
本文从生态旅游的角度的出发,阐述了自然保护区生态旅游开发的意义,分析了自然保护区生态旅游资源的特点和开发限制因素,初步探讨了我国自然保护区生态旅游开发原则。  相似文献   
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We apply GIS techniques to analyze a carefully selected database of 93 Early Neolithic sites in the Iberian Peninsula. This allows us to study the spatial dynamics of the Neolithic transition in Iberia. We study how the Neolithic was introduced into the peninsula in order to test the hypothesis that the Neolithic was introduced almost simultaneously from two sources: one at the northeast (via the Mediterranean coast) and another one at the south (possibly from Northern Africa). We also analyze how the expansion of the Neolithic transition took place within the Iberian Peninsula and measure local rates of spread in order to identify regions with fast and slow rates (such as the slowdown at the Cantabrian coast). In addition, we attempt to reproduce the main results obtained from the GIS analysis by applying reaction–dispersal models to the expansion of the Neolithic transition in the Iberian Peninsula. We conclude that a model with two sources is a reasonable assumption that agrees better with the archaeological data available at present than a model with a single source.  相似文献   
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This article describes the conditions for the development of four industrial clusters and the mechanisms of their integration in the regional economy. The case studies are the aerospace and apparel clusters in Montreal, and the agri‐food and marine science and technology clusters in the Lower St. Lawrence region. Clusters are defined as arrangements of businesses, government actors, public authorities, and local intermediary organizations in a local area. However, the study shows that clusters are based on actors and processes operating at different scales, from the local to the global. It also shows the importance of the sectoral leadership acknowledged by the different stakeholders.  相似文献   
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