Blocked-Error-R 2: A Conceptually Improved Definition of the Proportion of Explained Variance in Models Containing Loops or Correlated Residuals

Bentler and Raykov (2000, Journal of Applied Psychology 85: 125–131), and Jöreskog (1999a, http://www.ssicentral.com/lisrel/column3.htm, 1999b http://www.ssicentral. com/lisrel/column5.htm) proposed procedures for calculating R ² for dependent variables involved in loops or possessing correlated errors. This article demonstrates that Bentler and Raykov’s procedure can not be routinely interpreted as a “proportion” of explained variance, while Jöreskog’s reduced-form calculation is unnecessarily restrictive. The new blocked-error-R ² (beR ²) uses a minimal hypothetical causal intervention to resolve the variance-partitioning ambiguities created by loops and correlated errors. Hayduk (1996) discussed how stabilising feedback models – models capable of counteracting external perturbations – can result in an acceptable error variance which exceeds the variance of the dependent variable to which that error is attached. For variables included within loops, whether stabilising or not, beR ² provides the same value as Hayduk’s (1996) loop-adjusted-R ². For variables not involved in loops and not displaying correlated residuals, beR ² reports the same value as the traditional regression R ². Thus, beR ² provides a conceptualisation of the proportion of explained variance that spans both recursive and nonrecursive structural equation models. A procedure for calculating beR ² in any SEM program is provided.     

古诺纳什均衡下商品出口与绕过反倾销的FDI比较研究

该文章运用微观经济学、博弈论等理论和方法探讨了在国内外企业处于完全信息且同时决策（即古诺纳什博弈）的假设条件下,面对进口国政府的反倾销国外企业对商品出口或对外直接投资决策如何抉择问题;建立了绕过反倾销的可能引起对外直接投资的最小反倾销税率模型;得出了该反倾销税率与国外企业在国内外生产产品的单位边际成本及进口国市场所用收入税率有关以及进口国政府不能确定过高的反倾销税率等结论,并以彩电行业进行案例分析。     

基于行业视角的中国对外反倾销影响因素研究

本文利用1999年-2009年中国对外反倾销申诉数据,运用logit模型和经典线性模型测量了行业企业单位数、全部从业人员年平均数、总资产贡献率、资本密集度、工业成本费用利润率、竞争力指数、进口渗透率对中国对外反倾销行为在发起阶段的影响程度。结果表明行业企业单位数、总资产密集度和进口渗透率是发起反倾销申诉的重要影响因素,进口渗透率和全部从业人员年平均是影响申诉频率的主要因素。本文结论对中国反倾销理论分析和实践有参考价值。     

Comparative Research Productivity Measures for Economics Departments

The typical profit-maximization solution for the joint-production problem found in intermediate texts, managerial texts, and other texts concerned with optimal pricing is oversimplified and inconsistent with profit maximization, unless there is either no excess of any of the joint products or no costs associated with dumping. However, it is an inappropriate method of solution where excess does exist and the costs of dumping are explicitly recognized and, with respect to such cases, is at least nongeneral. The authors present a more realistic alternative method of solution, although more complex, as a substitute for the textbook method of solution typically offered.     

中国互助游的现状及发展策略研究

网络社区的发展,旅游需求的多元化,催生了一种全新的旅游方式——互助游。根据网络调查的结果分析了互助游的概念内涵和特征,互助游客的旅游行为特征及发展互助游的障碍,在此基础上总结网络调查结果提出部分发展策略,以期引导互助旅游的健康发展。     

Optimal Environmental Policy Differentials in Open Economies under Emissions Constraints

Is there a case for preferential treatment of the exposed sector in an economy when compliance to an aggregate emissions constraint induced by an international environmental agreement is mandatory? This question is being debated in many countries in the context of the implementation of the Kyoto Protocol. We address the issue in a general equilibrium framework and theoretically cover several market structures, including perfect competition, the large country case and oligopoly. We identify the conditions under which preferential treatment of the exposed sector is not warranted from the point of view of maximizing social welfare. In addition, we demonstrate that in the case of oligopoly, instituting a more stringent environmental policy on the exposed sector might be profit-enhancing for this sector. This finding lends theoretical support to a specific interpretation of the Porter hypothesis.     

中国遭受反倾销的现状分析及法律对策

中国加入世界贸易组织后，外国对我国出口产品的反倾销指控越演越烈，已经成为我国对外贸易发展的实质性障碍。其原因是多方面的，既有我国产业结构自身的原因，也有法规建设滞后、企业应诉消极等原因。我国应对国外反倾销指控的法律对策是应该在WTO法律框架下尽快完善《反倾销条例》和相关的部门法，健全反倾销应诉机制。     

我国反倾销法务会计存在的问题及对策分析

改革开放以来中国对外贸易迅猛发展,但同时也日益成为许多国家反倾销的重点对象。反倾销不是一个单纯的法律问题,认定倾销的过程需要良好的会计支持,法务会计作为法学和会计学的交叉学科,其在反倾销诉讼中的作用越来越受到关注。文章将说明法务会计在应诉反倾销中的作用,遇到的问题和障碍,并提出如何更好地使用法务会计手段应对倾销诉讼。     

X射线测量InGaN多量子阱的厚度组分及应变

高分辨率X射线衍射具有不损伤样品,无污染、高精度等优点,能够得到有关晶体的完整信息,是研究薄膜性质的重要手段之一。本文采用高分辨X射线衍射得到InGaN/GaN样品的ω/2θ扫描图和倒易空间图,研究InGaN/GaN样品的应变和组分、InGaN/GaN多量子阱的平均组分级厚度周期。从倒易空间图像得出的晶格常数与由002面和105面摇摆曲线所计算出的晶格常数相比较,垂直晶格常数符合得很好,而水平方向的晶格常数则有较大的差别,可以认为从倒易空间图像中得出的晶格常数更为准确。     

基于互惠合作的供应链合作关系稳定机制研究

首先应用强化学习算法对供应链合作关系的稳定机制进行研究;其次从生物学的角度研究了供应链合作关系中的互惠利他合作行为;最后利用计算机进行了系统仿真.研究得出：只要供应链合作关系中存在互惠利他型的企业,不管其所占的比重有多大,该企业都会通过强化学习使得互惠利他行为在供应链中扩散开来,最终达到企业间合作的一种稳定状态.