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Support for the "democratization of the policy sciences" has led to the development of a number of frameworks and theories to enhance the normative, multidisciplinary approach to policy analysis. However, this approach has been challenged for failing to produce the objective empirical and normative standards implied by its scientific aspirations. One consideration that has been advanced under a variety of rubrics is "participatory policy analysis." This is a methodological proposal that expands the range of actors/stakeholders involved in the making and execution of public policy in a discursive or deliberative mode. While much of the research on policy networks is focused on the management and coordination of such networks (i.e., collaborative management), there is little attention on analysis of networks as a participatory policy analytical approach. We propose a theory of "collaborative policy networks" that examines not only the stakeholder composition of a group or the partnerships between any two stakeholders but also the way these stakeholders are embedded in various degrees of institutionalized structure and the discursive tendencies of exchange among them that leads to policy initiative, implementation, evaluation, and possibly termination. Collaborative policy networks are characterized by discursive properties, specifically reciprocity, representation, equality, participatory decision making, and collaborative leadership. We suggest that the results of such research can identify structural signatures of collaborative policy networks that serve as "stamps" of the common nature of such networks that, if fostered, can inform and improve the attempt of networks of partners to achieve policy goals.  相似文献   
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The timing of the introduction, proliferation and decline of backed artefacts in Australia has been much debated. In south-eastern Australia, after initially appearing at least 8500 years ago, backed artefacts greatly increased in number between 4000 and 3500 years ago to the extent that they are found in numerous sites and are recorded in large numbers in individual sites from that time. From about 1500 years ago they declined markedly in number and had seemingly disappeared by the time of British colonization. Models explaining their proliferation advance the proposition that increased backed artefact production was triggered by heightened foraging risk and/or social re-organisation brought about by a change in climate to a regime which was cooler and drier than any other time during the Holocene combined with intensified ENSO climatic conditions. Our study develops this hypothesis by inferring the use of backed artefacts at Mussel Shelter in the Sydney Basin through an integrated use-wear and residue analysis. These inferences provide new insights into the nature of the evolutionary changes in tool production and use in response to the period of altered climatic conditions.  相似文献   
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This paper presents a case study aimed at correlating archaeological ‘events’ (obtained from radiocarbon measurements and dendrochronology) from the site of Sutton Common with a radiocarbon-dated pollen sequence obtained from a palaeochannel deposit adjacent to the area of the main archaeological activity. It demonstrates the use of a Bayesian approach to quantifying whether the timing of palynological ‘events’ interpreted as reflecting anthropogenic impacts are likely to be associated with archaeological ‘events’. The results suggest that Bronze Age activity in the form of a mortuary enclosure and associated cremation burials are probably not contemporary with the palynological evidence for disturbance to the oak–hazel woodland in this period. Subsequent evidence for local woodland clearance and agriculture is estimated to precede the construction of the large Iron Age enclosure in 372 BC, with increases in ‘anthropogenic indicators’ following this ‘event’. The construction of the site does not appear to have had a pronounced impact on the local vegetation, with hazel the only woody taxon to show clear reductions. Despite the use of a substantial number of oak timbers in the enclosure palisade, percentages of oak remain remarkably stable. Later farming activity on the site probably post-dates the end of activity in the enclosures. The value of the methodology is discussed in relation to quantifiable and robust correlations of archaeological and palaeoenvironmental narratives of landscape and human activity.  相似文献   
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Cross-cultural approaches have been used widely in archaeological research. Comparative ethnology has provided a number of archaeological indicators of behavior, but large segments of the archaeological record have not yet been subjected to extensive comparative analysis. Comparative archaeology has aided in exploring variation among societal types (such as chiefdoms) and categories within the archaeological record (such as settlements). Diachronic comparisons have been used frequently by archaeologists, but these have often been based on unique samples and only rarely have employed statistics to aid in the discovery or testing of hypotheses. Archaeoethnology, comparative analyses of archaeological cases employing valid samples and statistical evaluation of theories and hypotheses, is introduced.  相似文献   
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As colonial frontiers expanded in the nineteenth century, contests over access to land suitable for farming between pastoralists, small farmers and indigenous populations were the inevitable result. In colonial Auckland, this contest was particularly vigorous, firstly because the young settlement's economic survival was at stake, since environmental constraints largely prevented its participation in the lucrative New Zealand wool industry, and secondly, because the economic and military prowess of indigenous Maori meant that settlers had little room to move in. Auckland's wealthy pastoralists pinned their hopes on the occupation of Maori land to the south of Auckland, since this was more suitable for sheep than the settlement's immediate environs, but this required dispossessing the Maori population by force. Initially, this obstacle gave small farmers a political advantage over the pastoralists, but as firstly arable markets, and then plans for small farmers and Maori to rear sheep themselves, all faltered, the pastoralist cause became increasingly difficult for colonial authorities to resist. When these authorities finally turned against the Maori communities south of Auckland, and launched an imperial war against them, the pastoralists successfully lobbied for the lands they most coveted to be confiscated from Maori, an event that radically altered New Zealand's future economic geography.  相似文献   
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