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51.
Following a strictly theory-building approach, we developed an agent-based simulation model, the Nice Musical Chairs model, to represent the competition between groups of stakeholders of farming and herding activities in the arid Afro-Eurasia. The model deepens the questions raised by the results of our former model, the Musical Chairs model, and further introduces three socio-economic mechanisms, which modulate the behavior and performance of stakeholders and their groups. First, we define land use pairing as the awarding, regarding productivity, of any direct cooperation between farming and herding within a group. Second, group management is modeled as the prerogative of a group leadership to manage stakeholders to pursue a particular proportion between farming and herding. Third, we introduce restricted access to pasture as the engagement in territorial control of rangelands in opposition to an open access regime. An exhaustive exploration of scenarios and parameters placed the control over rangelands as the most significant factor in the formation of land use patterns, followed by land use management. While the effect of land use pairing is mild in comparison, it is still a significant factor in group selection and thus in the persistence of particular land use patterns in the long run.  相似文献   
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Abstract

In April 1967, a group of colonels seized power in Greece. Since Greece was a member-state of the Council of Europe and held an association agreement with the European Community, both organizations had to define their positions vis-à-vis the new military regime. Very soon, politicians in the parliamentary assemblies of both organizations started to cooperate with the aim of imposing sanctions on Greece. This article examines the inter-organizational dynamics between the European Community and the Council of Europe on Greece during the colonels’ regime. It argues that the European Community imported concrete policy positions and even normative ideas which had first emerged in the Council of Europe. In so doing, the Community prepared the ground for its future human-rights policies.  相似文献   
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The development of large agglomerations is one of the most important phenomena in later Eurasian prehistory. In west-central temperate Europe, the origins of urbanism have long been associated with the oppida of the second to first centuries BC. However, large-scale excavations and surveys carried out over the last two decades have fundamentally modified the traditional picture of early centralization processes. New results indicate that the first urban centres north of the Alps developed over time between the end of the seventh and the fifth century BC in an area stretching from Bohemia to southern Germany and Central France. Sites such as the Heuneburg, Závist, Mont Lassois and Bourges produce evidence of a process of differentiation and hierarchization in the pattern of settlement that was concurrently an expression of, and a catalyst for, increasing social inequality. Although contacts with the Mediterranean world would certainly have played a role in such processes, endogenous factors were primarily responsible for the development of these early Central European agglomerations. This paper summarizes recent fieldwork results, showing the heterogeneity and diversity of Early Iron Age central places and outlining their diachronic development. The fragility and ephemeral character of these centres of power and their territories is highlighted. Their demise was followed by a period of decentralization that constitutes a prime example of the non-linear character of history.  相似文献   
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For a long time, the origins and development of Late Iron Age oppida were viewed from predominantly economic perspectives and as dependent on contacts with the Mediterranean world. However, advances in research in recent decades make it necessary to qualify and reassess many of the traditional interpretations of the genesis and functions of these centres, one of the most striking phenomena of the last two centuries BC. This article emphasizes the political and religious role of continental European oppida, understanding them as a new ‘technology of power’, which enabled a more hierarchical and centralizing ideology to be articulated. Moreover, new evidence suggests that many oppida may have had their origin in spaces for ritual gatherings. The result is a new interpretation of the genesis and characteristics of Late Iron Age centralization processes.  相似文献   
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Herding and farming coexisted in Central Asia for several thousand years as main options of preindustrial economic production. The relationship between people practicing different variants of these modes of subsistence is known to have been dynamic. Among the many possible explanations, we explore this dynamic by modeling mechanisms that connect aggregate decisions to land use patterns. Within the framework of the SimulPast project, we show here the results from step 1 of our modeling program: the Musical Chairs Model. This abstract agent-based model describes a mechanism of competition for land use between farming and herding. The aim is the exploration of how mobility, intensity, and interdependence of activities can influence land use pattern. After performing a set of experiments within the framework of this model, we compare the implications of each condition for the corroboration of specific land use patterns. Some historical and archaeological implications are also discussed. We suggest that the overall extension of farming in oases can be explained by the competition for land use between farming and herding, assuming that it develops with little or no interference of climatic, geographical, and historical contingencies.  相似文献   
59.
While households are widely held to have existed as the fundamental building block of early agricultural villages, researchers have only a limited understanding of the local social and economic trajectory of Neolithic households. Expanding our archaeological understanding of the Neolithic household beyond architecture, settlement organization, and subsistence practices, in this paper we explore how gradual changes in mortuary practices at Tell Halula, Syria, help us to understand the process of household development around 7500–7300 Cal. BC. Drawing upon high-resolution mortuary data we consider the tempo and mechanisms of change and how these patterns help us understand the organization of the household. Material patterns including the increased use of burial objects, an increased frequency of the placement of burial objects among adults, and the differential use of burial objects between households. These represent subtle, yet observable, small-scale shifts in how social roles were redefined and materialized. We argue that these reflect a series of gradual changes that are suggestive of increased household autonomy and an increase in social segmentation within and between households. The Tell Halula data highlight elements of continuity and how household members adhered to a broadly shared physical and organizational framework of life. Data also illustrate how household members developed subtle means by which practices were personalization, and potentially, reflect growing means by which households and individuals were identified within these communities. Collectively, this research provides a detailed understanding of the grass-roots building blocks of Neolithic households over a short time frame and a more detailed understanding of the local social and economic trajectory of Neolithic households.  相似文献   
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This research paper tries to analyse the role that knowledge about foreign markets has in increasing firms' exports in clustered spaces. We consider two interrelated sources of this knowledge, a firm's direct experience and its indirect experience from other clustered firms. In particular, it is proposed that firms can improve their export performance by accessing others' knowledge as long as they have some previous direct experience that allows them to identify, understand and exploit these. Nevertheless, this positive influence of previous direct experience on exports continues only to a certain point, at which time it becomes less relevant or even negative. Firms with broad international experience have little to learn from local interactions, being more enriching establishing relationships with agents from outside the cluster. Empirical evidence gathered from wine producers located in La Rioja, Spain, confirms the moderating but decreasing importance of previous experience.  相似文献   
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