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211.
This paper will provide an introduction to a new field of research, viz. the sensitivity of the solution trajectory of a dynamic logit model (belonging to the class of discrete choice models) in the light of a multiperiod lag structure. It is well known from recent advances in the area of chaos and turbulence theory that the stability of a dynamic system is critically dependent on various factors, such as threshold values of parameters, initial conditions, and also the lag structure. This paper aims to identify the consequences of different lag structures in dynamic logit models (including also dynamic spatial interaction models). Various simulation experiments will be used to show that the onset of instability of the solution trajectory tends to decrease as the number of time lags increases (depending also on the growth rate of the system). 相似文献
212.
Data on the spatial distribution of features, pottery, lithic materials, fishbones and shellfish are used to examine spatial organization in the SE-RF-2 Lapita site (Reef Islands, Southeast Solomons). It is shown that the site is at most a small hamlet and consisted of a large rectilinear central structure with an adjacent cooking area. It is argued that the distribution of imports (pottery, chert, obsidian) with different transport costs cannot be explained in simple economic terms and that their movement was embedded in a set of important social relations. 相似文献
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Peter Ambrose 《对极》1973,5(1):2-14
Urban redevelopment plays the part of a secondary process parallel to that of industrial production. It is a compensating process: when the surplus value created by industry sinks to a low level, surplus value created by construction and speculative development rises instead. Urban planning masks this relationship and in so doing prevents not only a clear understanding of urban phenomena, but also the proper use of the city itself. This is why planning must be subjected to a radical critique which in the end will refute the state, its strategies and its misuse of urban space. 相似文献
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Peter Sloman 《Contemporary British History》2016,30(2):203-223
Historians of Britain’s post-war welfare state have long been aware of the shortcomings of the social insurance model, but the political impact of the Beveridge report has tended to obscure the alternative visions of welfare canvassed in the 1940s and 1950s. This article examines the social activist Juliet Rhys-Williams’ campaign for the integration of the tax and benefit systems and the provision of a universal basic income, which attracted wide interest from economists, journalists, and Liberal and Conservative politicians during and after the Second World War. Though Rhys-Williams’ proposals were not adopted, they helped establish a distinctive ‘social market’ perspective on welfare provision which has become central to British social policy debates since the 1960s and 1970s. 相似文献
217.
This article introduces the concept of urban togetherness to parade research. We suggest that some parades are practices that establish urban relations and not community, carnival or consumerist relations. We develop this new perspective on the basis of a literature review and an analysis of a parade in Brussels, the Zinneke Parade. In the literature review, we distinguish between three existing perspectives on parades. Research has argued that parades serve to build community and claim identity, to suspend social positions and to enable tourist/consumerist relations. In our analysis, we focus on concrete features of the Zinneke Parade obtained through video recording showing the costumes and objects carried along, the rhythm and sounds, and the borders and interactions established during the parade. We argue that the Zinneke Parade should be understood as a form of urban togetherness in which participants and spectators are exposed to each other in a practice that does not necessarily lead to identification and shared meaning. 相似文献
218.
Peter W. Stahl 《Reviews in Anthropology》2016,45(1):51-68
The reemergence of cognitive studies in comparative psychology and ethology, coupled with ongoing archaeological discoveries and recent advances in genomics, have contributed to the current explosion of scientific interest in dogs (Canis lupus familiaris). The long and complex evolution of a human-dog relationship is explored from the differing perspectives of ethology, cognitive sciences, evolutionary anthropology, archaeology, and paleoanthropology. Our understanding of dogs is again shedding light on human cognitive evolution and the complex, and at times controversial, process of domestication. 相似文献
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