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41.
Graphical models provide a powerful and flexible approach to the analysis of complex problems in genetics. While task-specific software may be extremely efficient for any particular analysis, it is often difficult to adapt to new computational challenges. By viewing these genetic applications in a more general framework, many problems can be handled by essentially the same software. This is advantageous in an area where fast methodological development is essential. Once a method has been fully developed and tested, problem-specific software may then be required. The aim of this paper is to illustrate the potential use of a graphical model approach to genetic analyses by taking a very simple and well-understood problem by way of example.  相似文献   
42.
城市化问题是当代社会经济发展的重大问题,是涉及到自然资源的合理开发利用,农村人口转化、剩余劳动力的走向以及城市工业、第三产业发展的关键问题。  相似文献   
43.
We provide evidence on the impact of tax incentives and financial constraints on corporate R&D expenditure decisions. We contribute to extant research by comparing R&D expenditures in the United States and Canada, thereby exploiting the differences in the two countries' R&D tax credit mechanisms and generally accepted accounting principles. The two tax incentive mechanism designs are consistent with differing views of the degree of financial constraints faced by firms in these economies. Our sample also allows us to explore the effects of capitalizing R&D on Canadian firms. Employing a matched design, we document relations between tax credit incentives and R&D spending consistent with both Canadian and U.S. public companies responding as though they are not financially constrained. We estimate that the Canadian credit system induces, on average, $1.30 of additional R&D spending per dollar of taxes forgone while the U.S. system induces, on average, $2.96 of additional spending. We also find that firms that capitalize R&D costs in Canada spend, on average, 18 percent more on R&D. Collectively, this evidence is important to the ongoing debates in both countries concerning the appropriate design of incentives for R&D and is consistent with the assumptions found in the U.S. tax credit system, but not those found in the Canadian system.  相似文献   
44.
Under the international textile trade development condition, the author analyzes the international textile trade market and the situation of Chinese textile trade after China entry into WTO, reveals the influence of the world textile trade development on Chinese textile trade, and proposes a series  相似文献   
45.
46.
本文认为,诚信建设对企业发展至关重要,无论是要维持正常的经营活动,还是要通过创立品牌做强做大,乃至于要走出国门,参加全球竞争,都离不开诚信。企业缺乏诚信,必然会失去社会的信任,进而导致自身利益的丧失;坚守诚信,必然能赢得社会的信任,并从中获得利益。文章强调,企业不能将诚信建设仅仅作为一种谋取自身利益的手段,单纯从赢得用户的信赖出发,从企业自身的利益出发,而应该培植真正的诚信品质,最根本的是要着眼于提高人的精神追求与道德素质。诚信建设一靠教育,二靠制度。  相似文献   
47.
文章通过运用一个概念模型并提出一些假设:企业社会责任部分地通过顾客满意这个中间变量影响其市场价值;企业社会责任与其市场价值的关系依赖于企业产品质量或创新能力。实证研究表明。顾客满意在企业社会责任和其市场价值之间能够起到中介效应;企业能力在企业社会责任与其市场价值之间能够发挥调节效应。  相似文献   
48.
China's Regional Disparity and Its Policy Responses   总被引:3,自引:1,他引:2  
The fruits of China's rapid economic development over the 3 decades have not been distributed fairly across different regions. Using data from a sample of 815 Chinese listed firrns during 1998-2004, our error-correction investment model showes evidence of different financial constraints on firms' investment in different regions. We argue that China's regional development policies have contributed greatly to the regional inequalities. To control the rising inequality, China has shifted its focus from the coast to the interior regions. However, it is becoming increasingly difficult for the government to direct the economy, as market mechanisms now have afar greater influence on the economy than the government does. The people-centered approach of the current leadership has meant that substantial attention has been placed on regional development disparities in an attempt to build a "harmonious society. " China needs further extensive reforms if all the measures for reducing regional disparity are to be effective.  相似文献   
49.
This article analyzes the contribution of modern service industry to the economic development in six aspects: the modern service industry can promote economic growth, expand employment, promote economic restructuring, enhance the level of urbanization, improve people's standard of living and help enterprises to convert business ideas.  相似文献   
50.
金庸小说研究热闹非凡,而其散文研究却冷冷清清。金庸散文有独到的艺术特色:语言浅白而富于变化,构思简练却又暗藏机锋,重民族形式又加以创新,于博古通今中熔铸情思。金庸散文不仅有极高的文学价值,而且有重要的文献意义,对“金庸研究”有很强的互补性。  相似文献   
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