Modelling and research on manufacturer’s capacity of remanufacturing and recycling in closed-loop supply chain

This paper introduces and analyses the present situation of the electronic waste recycling at home and abroad. Involving manufacturers in the recycling process of supply chain as the dominant party and establishing the closed-loop supply chain system structure model of the waste electronic products recycling, the effects of remanufacturing capacity and recycling coefficient on the closed-loop supply chain recycling network are analysed by using system dynamics method. The simulation results show that, compared with the traditional supply chain, the total revenue of the supply chain under the recycling mode dominated by manufacturers has improved, that the increase of the remanufacturing capacity has promoted the growth of the electronic product's sales rate, which reaches a equilibrium when remanufacturing capacity is set as 0.36, and that the recycling efficiency of e-waste has improved significantly as the e-waste recycling coefficient constantly increased.     

生态权益法治保障制度构建新思路——基于“共识导向”的环境司法改革思考

作为治理的基本要素,"共识"不同于单纯的"同意"(consent)、"治理"有异于传统的"管理"。应当以"共识导向"为基础,以民主治理为依托,探索生态法治建设的五个新思路:基于民主协商的生态共识、选举民主与"绿色法治GDP"新考评体系、社会自治与生态司法改革、谈判民主下互动式生态权益救济之道、生态法治的组织架构创新。     

论唐宋时期“如何”作主语的特点及相关问题

"如何"是近代汉语中"何"系疑问代词主语功能的代表,尽管其使用频率很高,但却只能出现在"如何+是/关系代词+Y"结构中。唐宋时期,疑问代词作主语功能比较单一,疑问代词能否出现于主语位置与其指别性特征密切相关。高指别性的疑问代词能够增加疑问代词的话题性,因而可以作主语;而低指别性的疑问代词如果充当主语则会引起语言内部诸多层面的矛盾。     

国际政治社会化:国际规范与国际行为体的互动机制

国际政治一体化和全球治理的兴起,加强了国际体系结构及制度规范与国际行为体的互动关系。在国际行为体互动过程中,如何内化国际规则和制度、传播国际体系文化,以及实现全球治理,是国际政治社会学的重要研究内容。本文认为,中国作为全球治理体系的重要建设者,必须积极回应和创造性地介入国际政治社会化进程,从文化层面提升全球治理的有效性。     

Variable selection for additive model via cumulative ratios of empirical strengths total

We propose a data-driven method to select significant variables in additive model via spline estimation. The additive structure of the regression model is imposed to overcome the ‘curse of dimensionality’, while the spline estimators provide a good approximation to the additive components of the model. The additive components are ordered according to their empirical strengths, and the significant variables are chosen at the first crossing of a predetermined threshold by the CUmulative Ratios of Empirical Strengths Total of the components. Consistency of the proposed method is established when the number of variables are allowed to diverge with sample size, while extensive Monte-Carlo study demonstrates superior performance of the proposed method and its advantages over the BIC method of Huang and Yang [(2004), ‘Identification of Nonlinear: Additive Autoregressive Models’, Journal of the Royal Statistical Society Series B, 66, 463–477] in terms of speed and accuracy.     

传媒人才流失问题与对策研究

针对传媒业在用工调配和使用上的种种弊端，要转变政府管理职能，实行政企分开。国家必须从“办媒体”到“管媒体”转变，从内部管理转变为外部管理。传媒业需要实行全员聘用制，变身份管理为岗位管理，建立符合市场需要的人岗匹配的人事制度，不能因人设岗，而是需要因岗择人。公司化管理是市场经济必然要求，劳务派遣是市场用工的形式，对于编外人员按照市场化需要进行管理。采用激励机制，培养良好的企业文化。     

开拓与总结：钱南扬先生南戏研究述略

钱南扬先生是学界公认的南戏研究的开拓者和集大成者。他最早从事南戏研究，以扎实厚重的学术成果开拓了一个新的研究领域，奠定了南戏研究的学科基础。其南戏研究持续半个多世纪，涉及各个方面，在作品校注、曲文钩沉及史论方面皆有建树，构建了一个系统、完整的南戏研究学术体系，由此奠定了其学术地位，对南戏研究影响深远。     

中国的人口老龄化程度到底有多严重？

以前关于我国老年人口和人口老龄化特点的一些概括基本上是科学的,但不够全面、准确。本文通过研究有了很多新的发现。     

Inventory Control with a Fixed Cost and a Piecewise Linear Convex Cost

This paper studies the optimal policy for a periodic‐review inventory system in which the production costs consist of a fixed cost and a piecewise linear convex variable cost. Such a cost function can arise from alternate sources of supply or from the use of overtime production. We fully characterize the structure of the optimal policy for the single‐period problem. For the multi‐period problem, the optimal policy can have disconnected production regions and complicated optimal produce‐up‐to levels, which implies that implementation of the optimal policy may not be practical. Fortunately, careful investigation shows that the optimal policy has some interesting properties. The structure of the optimal policy outlined by these properties leads to a practical and close‐to‐optimal heuristic policy. In an extensive numerical study, the average gap is only 0.02% and the worst gap is 1.37%.     

基于行业特征的股利迎合政策研究——以中小板上市公司送转股为例

文章运用股利迎合理论,在对股利溢价改造的基础上,基于行业特征实证研究了我国中小板上市公司送转股股利政策是否存在迎合行业股利需求偏好的行为。研究表明,行业股利需求偏好不仅对中小板上市公司送转股概率高低有显著影响,而且对送转股比例高低也有着重要影响。可见,我国中小板上市公司确实存在理性迎合行业股利需求偏好热衷送转股的行为,而迎合的目的,是为了获得更高股利溢价。