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31.
支持物流系统的智能化方向 总被引:1,自引:0,他引:1
介绍了CALS在物流领域的应用前景,论述了物流技术发展及其智能化方向的理想,概念等有关问题,最后介绍了假想物流系统技术的概念和发展及其应用的意义。 相似文献
32.
Professor Amalia Morales Zumaquero 《International economic journal》2013,27(4):107-119
In this paper we study the long-run Purchasing Power Parity (PPP) hypothesis by traded and non-traded sectors using cointegration techniques in the presence of structural breaks, for a set of European countries during the period 1975:1-1995:12. This approach is complementary to many existing approaches to investigate the PPP Hypothesis. We find evidence in favor of long-run PPP hypothesis when commodity prices and used in the presence of structural breaks. This result lends support to the integration process in the European Union. [C22, F30] 相似文献
33.
Jacques Lesourne 《Journal of Economic Theory》1976,13(1):118-137
The paper presents a growth model based on three essential assumptions: perfect knowledge of the future, descreasing returns on investment in a stagnant economy, appearance of new investment possibilities with the growth of the economy. Two cases are considered: the self-financing growth and the borrowing situation in the context of two management policies, the maximization of the discounted flow of dividends and the maximization of the growth rate. 相似文献
34.
Jacques Lévy 《Geopolitics》2013,18(3):99-113
What can be the goal for a state that is no more an empire in an environment where empire cannot be a goal anymore? In this paper, it is argued that there is a classic French geopolitical stance which has conserved a large part of its characteristics over centuries and which can be compared to the attitudes of other European states. It is precisely because this long‐lasting, consistent set of ideas and behaviours is coming apart that it is urgent to put it in the perspective of its own historical development. After some general remarks on the particular part played by France on the European geopolitical checkerboard, the fate of the ‘special relationship’ between France and Africa, as a dramatic case study of the widening gap between the traditional imperial stance and newly emerging realities, is considered. The third aspect of this reflection is an analysis of the original characteristics of the European Union in terms of international relations and the impact of this new context on the evolution of the French state. 相似文献
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Richard H. Watson Research Assistant Professor 《Technological Forecasting and Social Change》1978,11(2):165-185
Interpretive Structural Modeling (ISM) is a computer based technique for helping small groups develop graphical representations of complex systems. In this paper, the rationale for the use of Interpretative Structural Modeling in activities such as technology assessment is developed and the basic concepts underlying the technique are explored. Several applications of ISM are described and from these experiences some observations are made about the nature and effectiveness of the ISM process and product. ISM was found to provide its users with a systematic and comprehensive method for integrating group judgments in the development of “first-cut‘ structural models. At the same time, however, the technique was found to be relatively inflexible and may, in some instances, inhibit group processes. Possible directions for the development of less rigid methods are suggested. 相似文献
38.
Jacques Crémer 《Journal of Economic Theory》1982,27(2):439-443
This note presents a simple proof of Blackwell's well-known theorem on the equivalence of two orderings of experiments, one based on the statistical concept of sufficiency, and the other on the economic concept of the value to the decision makers. 相似文献
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40.
Ad Notten Jacques Mairesse Bart Verspagen 《Economics of Innovation and New Technology》2017,26(1-2):21-41
ABSTRACTSince Crepon, Duguet, and Mairesse published their ground-breaking article (‘Research, Innovation and Productivity: An Econometric Analysis at the Firm Level’, 1998), the CDM framework has known a large diffusion, despite being published in a non-indexed journal. The present study is an exploration of the spread and recombination of ‘knowledge’ in the ‘CDM universe’, comprising all papers in Scopus indexed journals citing CDM or/and CDM cited papers. We assess first the speed and range of diffusion of CDM and investigate next the ‘origins’ and further ‘genealogical’ make up of the knowledge recombinations within the CDM universe. We find that CDM is cited by a growing number of papers, which spread over a variety of fields, and that it compares very well with the most cited comparable articles in indexed journals in its domain of research. We further find that the CDM universe is mainly constituted of three large clusters and for each of them we are able to identify knowledge paths going from the CDM and earlier cited papers to the subsequent main citing papers. We intend to provide a detailed interpretation of these findings in future work. 相似文献