共查询到20条相似文献,搜索用时 15 毫秒
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Bill Keepin 《Policy Sciences》1984,17(3):199-276
Several shortcomings in a major study of the world's energy system are described. The study, entitled Energy in a Finite World, resulted in widely publicized conclusions and urgent policy recommendations that were derived from detailed projections of the global energy future. A set of computer models was used to produce these projections, which are analyzed here in two ways. First, treating the models as a black box, it is shown that several principal results are effectively prescribed informally in input data that pass through the models unchanged. Second, despite claims of robustness, detailed sensitivity analysis shows that the energy supply projections are highly sensitive to perturbations in various input data. Early work that revealed this problem is not cited, and standard sensitivity tests are not provided in the study. Thus, despite the appearance of analytical rigor, the study's conclusions are evidently based on opinions rather than objective robust analysis.Bill Keepin is Research Fellow at the Beijer Institute, Royal Swedish Academy of Sciences, Box 50005, S-104 05 Stockholm, Sweden. This work was carried out at IIASA, where he was Research Scholar from October 1981 to June 1984. 相似文献
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Todd Sandler 《Public Choice》2011,149(3-4):225-234
This article sets the stage for the special issue by describing the many faces of counterterrorism policy. The article highlights some key concepts??e.g., domestic and transnational terrorism, and alternative types of counterterrorism policies??that are applied throughout the special issue. The two data sets exploited in this issue??s empirical contributions are also described. Next, each of the 12 articles is introduced and briefly summarized. The main conclusions and insights of the articles are distilled and placed in perspective. 相似文献
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Compson M 《Social security bulletin》2011,71(4):33-59
This article introduces the 2006 Earnings Public-Use File (EPUF) and provides important background information on the file's data fields. The EPUF contains selected demographic and earnings information for 4.3 million individuals drawn from a 1-percent sample of all Social Security numbers issued before January 2007. The data file provides aggregate earnings for 1937 to 1950 and annual earnings data for 1951 to 2006. The article focuses on four key items: (1) the Social Security Administration's experiences collecting earnings data over the years and their effect on the data fields included in EPUF; (2) the steps taken to "clean" the underlying administrative data and to minimize the risk of personal data disclosure; (3) the potential limitations of using EPUF data to estimate Social Security benefits for some individuals; and (4) frequency distributions and statistical tabulations of the data in the file, to provide a point of reference for EPUF users. 相似文献
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The paper compares and confronts the work of two of the most distinguished living Marxist philosophers: G. A. Cohen from the English-speaking world, and Louis Althusser from France. It develops a critique of certain of Cohen's theses from the standpoint of ideas present in the work of Althusser. But it also problematizes certain presuppositions common to the work of both – in particular, the notion that historical development (transition or revolution) should be explained in terms of some general theory of non-correspondence between productive forces and production relations: the difference being simply that, within this scheme, Althusser accords explanatory primacy to the latter, Cohen to the former. Cohen's and Althusser's accounts of technological innovation and development are also compared, in connexion with the contrasting place which they attribute to the notice of human rationality on the one side and class struggle on the other. 相似文献
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Peter Kurrild-Klitgaard 《Public Choice》2014,158(3-4):297-310
The year 2012 was the 30th anniversary of William H. Riker’s modern classic Liberalism against populism (1982) and is marked by the present special issue. In this introduction, we seek to identify some core elements and evaluate the current status of the Rikerian research program and its empirical applications. Special attention is given to three phenomena and their possible empirical manifestations: The instability of social choice in the form of (1) the possibility of majority cycles, (2) the non-robustness of social choices given alternative voting methods, and (3) the possibility of various forms of manipulation of the decisions (heresthetics). These topics are then connected to the contributions to the current special issue. 相似文献
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This paper argues that comtemporary developments in democratic politics mark the emergence of a new type of representative government. Current trends such as the weakening of party identification, the decline of political platforms or the increasing role of an élite of media experts may be regarded as undermining the principle of popular government. The paper demonstrates, however, that representative government was not invented as an indirect form of government by the people, but as a wholly original political system resting on principles different from those which organize democracy. Moreover, a number of institutional arrangements were established at the origins of representative government which have been virtually unquestioned since. Political representation has changed much less than is generally assumed. It is true, on the other hand, that the constant principles of representative government have had different consequences depending on the circumstance in which they were implemented. Such differences have generated various forms of political representation. The paper constructs three ideal-types of representative government. It shows that the current situation is best conceived as the rise of a new type of representation. 相似文献
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This paper concerns the emergence of a specifically 'economic' way of governing poverty at the start of this century, an event which is to be accounted for, though by no means exhaustively, by the discovery of 'unemployment'. The latter will make it possible to relate the nineteenth-century 'problem of the unemployed' to an object domain that is primarily economic, rather than cultural or moral. A new object of regulation will emerge from this economic problematization of the 'social question': the labour market. The paper pays particular attention to the national labour exchange system, the political technology that will visibilize the labour market in new ways. Together with unemployment insurance, it will suggest new ways of governing poverty and a new course for social policy. 相似文献
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P. Brett Hammond 《Policy Sciences》1984,16(3):227-243
It is well-known that modelers and policy analysts gain access to policymaking arenas based on what they know. Therefore, critics of models are quick to employ various types of technical standards when evaluating policy models in order to assess validity and reliability of claims to knowledge. This article argues that, in the effort to make models better, overreliance on technical standards misses the important political and policy reasons to model: models call attention to the modelers and to their advice about important policy problems of the day. In this sense, models are used as symbols, as claims to authority, whether or not the underlying knowledge is technically up to snuff. Drawing on the experience of energy policy models, this article explores the problem of models as knowledge versus models as symbols and it examines the muddle that conflicts between them produce. 相似文献