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This article posits that management theories and practices in the P. R. China have been influenced by three cultural forces: Confucianism, socialism, and capitalism. It explores the impact of the three ideological systems, cultural values, and beliefs on managerial philosophies and practices. It is suggested that contemporary organizational behavior and management practice in the P. R. China tend to reflect ideologies of three cultural forces.  相似文献   

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In this paper, a network model is developed in which three players—a profit‐maximizing provider of cloud computing services, its consumers, and a hacker—sequentially choose their strategies. Several scenarios with different levels of data security and public prosecution of the hacker are analyzed. Especially for the case when no security measurements are available, a firm's strategy to limit the network size in order to render hacking unattractive is discussed in detail. Finally, policy implications are given implying better international cooperation of the law enforcement authorities.  相似文献   

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The various stages in the history of statistical computing are illustrated by personal experiences. The stages include batch processing, interactive working, and the consultative mode. Statistical aspects associated with one or more of these stages include the development of general algorithms, procedures for model checking, and data-driven non-parametric modelling.  相似文献   

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In economic recessions consumption usually drops in tandem with other aggregate quantities as output or employment. Following the permanent income hypothesis, these drops can be rationalized by the idea that consumers have pessimistic views about their long-run income. Using a standard signal-extraction model, we show that this pessimism can be due either to a persistent fall of aggregate productivity before and during the recession (signaling a future decline of income), or to other negative information unrelated to contemporaneous fundamentals, which we label “bad news”. We classify U.S. recessions (from 1919 to 2015) according to a (bad) news index reflecting this negative information. We find that both the Great Depression and the Great Recession score highest in this index. The index is such that we can rule out that this is due merely to the length or the depth of these recessions. Instead, these two recessions are similar in that both were aggravated by a wave of pessimism about future income which cannot be related to contemporaneous fundamentals.  相似文献   

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This paper presents a measure of goodness of fit for Zellner's seemingly unrelated regressions. The measure is a monotonic transform of the appropriate (asymptotic) F-statistic, is bounded on [0, 1] and is maximized by Zellner's estimation technique. Glahn's composite correlation coefficient is shown to be a special case of this measure. It is also compared to Hooper's squared trace correlation coefficient. All three measures as well as some additional asymptotic summary test statistics are calculated for the two-equation example of Zellner. The applicability of the latter test statistics seems not to be recognized in applied work.  相似文献   

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Driven by the vast proliferation of mobile devices and ubiquitous computing, dynamic software adaptation is becoming one of the most common terms in Software Engineering and Computer Science in general. After the evolution in autonomic and ubiquitous computing, we will soon expect devices to understand our changing needs and react to them as transparently as possible. Software adaptation is not a new term though; it has been extensively researched in several domains and in numerous forms. This has resulted in several interpretations of adaptation. This survey aims to provide a disambiguation of the term, as it is understood in ubiquitous computing, and a critical evaluation of existing software adaptation approaches. In particular, we focus on existing solutions that enable dynamic software modifications that happen on resource constrained devices, deployed in mobile and ubiquitous computing environments.  相似文献   

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We examine the performance of a metric entropy statistic as a robust test for time-reversibility (TR), symmetry, and serial dependence. It also serves as a measure of goodness-of-fit. The statistic provides a consistent and unified basis in model search, and is a powerful diagnostic measure with surprising ability to pinpoint areas of model failure. We provide empirical evidence comparing the performance of the proposed procedure with some of the modern competitors in nonlinear time-series analysis, such as robust implementations of the BDS and characteristic function-based tests of TR, along with correlation-based competitors such as the Ljung–Box Q-statistic. Unlike our procedure, each of its competitors is motivated for a different, specific, context and hypothesis. Our evidence is based on Monte Carlo simulations along with an application to several stock indices for the US equity market.  相似文献   

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A bstract . Urban site value taxation —an application to one of the several types of land and natural resources of Henry George's proposals for recapturing for the public's benefit the value its presence and activities accord to land—has been investigated by a leading British fiscal economist, A. R. Prest. He finds that the taxation of urban land is badly in need of reform. Considering the options available, he declares: "With site value rating (land value taxation ) there surely is a very strong case for further experimentation." Professor Prest surveys the whole literature of the question in a strictly objective fashion.  相似文献   

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