和谐社会与弱势群体权利保障--以农民工权利保护为视角

和谐社会不是没有分层的社会,但一定是弱势群体的基本生存尊严可以得到维护的公平社会。关注弱势群体,加强对弱势群体的权利保障是构建社会主义和谐社会的必然要求。农民工是当代中国社会转型时期出现的一个新的社会阶层。从占有社会资源的多少来衡量,农民工这一社会阶层在社会中处于弱势地位。保护农民工的合法权利是构建和谐社会所面临的一项迫在眉睫的社会任务。     

文化、自然界与现代性批判——环境社会学理论的经典基础与当代视野

本文对不同时期社会学理论对环境问题的论述、阐释与贡献进行了研究,分析了经典传统理论所蕴含的环境社会学的理论基础,透视了20世纪中期以来特别是进入新千年后当代社会学理论对环境社会学理论的丰富与拓展,预示了环境社会学理论的未来发展之路     

基于中国公司情境的和谐管理领导力研究

在回顾有关领导理论研究的基础上,提出了和谐管理领导力应具备3种特征:组织影响力、内在控制点的个性特征和管理技能.同时,发展了相应的测度和研究量表,通过对中国公司样本的研究,对比了环境、组织、战略与领导4个要素对组织绩效的影响效果,用实证结论支持了和谐管理领导力的观点,即在中国公司情境下,与环境、组织和战略因素相比,领导扮演着更为重要的角色并发挥关键作用.     

企业IT能力系统动态演变的分析模型研究

揭示企业IT能力的演变规律,有助于把握影响IT能力系统的关键因素,从而提高企业信息系统的应用效果。本文以系统观为基础,依据协同学理论,讨论了企业IT能力系统的概念及其构成,探讨了企业IT能力系统的协同特征,提出了企业IT能力成熟度作为企业IT能力系统序参量的五种状态特征,并建立了企业IT能力系统的序参量方程,最后构造了该系统动态演化机制理论模型。     

Rapid Trading bei deutschen Aktienfonds: Evidenz aus einer großen deutschen Fondsgesellschaft

This paper is the first to examine rapid trading among German equity mutual fund investors. Using data on inflows and outflows provided by a large German mutual fund company for all of its equity funds, we find strong evidence for rapid trading. It is particularly pronounced for small funds, risky funds, funds with low nominal prices, and international funds. However, we find no evidence of market timing activities. Furthermore, unlike in the US, rapid trading is less pronounced for funds with high loads. This shows that rapid trading among German fund investors is not explained by churning due to brokers’ advice. Rather, our results are consistent with the view that some investors use mutual funds for short-term, speculative purposes. The funds among which we observe the strongest rapid trading show lottery-like characteristics. Regarding fund performance, we find (at most) only very weak evidence for a negative impact of rapid trading on fund performance before the fund scandal of 2003, and no evidence afterwards.     

审计委员会制度与盈余质量的改善

本文采用2002年至2004年上市公司的数据.以盈余质量视角研究审计委员会制度的有效性.研究发现,基于各年截面数据,设有审计委员的上市公司均具有较高的盈余质量,同时也发现这种盈余质量上的差异已经存在于上市公司成立审计委员会的上一年.当控制这种成立前的盈余质量差异之后,本文发现,设立审计委员会前后,上市公司盈余质量没有显著变化.因此,本文结论并没有发现审计委员会在提高会计盈余质量方面已发挥了应有的作用.     

Path cooperative games

Cooperative games provide an appropriate framework for fair and stable profit distribution in multiagent systems. In this paper, we study the algorithmic issues on path cooperative games that arise from the situations where some commodity flows through a network. In these games, a coalition of edges or vertices is successful if they establish a path from the source to the sink in the network, and lose otherwise. Based on dual theory of linear programming and the relationship with flow games, we provide the characterizations on the core, CS-core, least-core and nucleolus of path cooperative games, which implies all of these solution concepts are polynomial-time solvable for path cooperative games.     

Energy conservation through resource-aware movement in heterogeneous mobile ad hoc networks

Energy conservation in mobile ad hoc networks is of paramount importance because most mobile nodes usually have very limited energy supply. Previous research on this issue focused on the design at the network or MAC or physical layer. In this paper, we study this problem from the new perspective of node mobility, i.e., analyzing the impact of node movement on energy conservation. In particular, armed with the inherent resource heterogeneity in mobile ad hoc networks, we propose a novel resource-aware movement strategy to make better use of some powerful nodes to achieve energy conservation. We also formulate the resource-aware movement as a NP-complete distance-constrained least-cost (DCLC) routing problem and propose an efficient heuristic solution. Extensive simulations have been used to demonstrate the effectiveness of the proposed schemes.     

人格特质、组织承诺与离职意图关系的实证研究

通过对中国联通安徽分公司131名雇员进行实证分析,考察了个人属性、内外控型人格特质、组织承诺与雇员离职意图的关系。结果发现组织承诺、内外控人格特质对离职意图有显著影响,个人属性中除婚否外,其他属性对离职意图也有显著影响。推测组织承诺将极有可能是个人属性与离职意图间的中介变量,并且对内外控人格特质与离职意图之间的关系具有调节作用。     

服务型制造网络的Holon协同需求评价方法

依据复杂网络理论分析服务型制造网络Holon协同需求问题,给出一种考虑以直觉正态模糊数表示且多Holon协同的服务型制造网络协同需求评价方法。首先,在区分Holon复合协同和递归协同基础上构建服务型制造网络协同需求评价指标体系;其次,考虑基于网络结构特征的Holon相似稳定性,根据服务型制造网络节点相似性测度分析Holon协同需求特征,并测算不同相似性测度修正的Holon网络结构熵;再次,建立面向服务型制造网络和Holon的有专家信息双向触动反馈机制,反馈包括评价指标和网络协同状况,反馈Holon信息包括基于服务型制造网络演化方向的Holon间协同需求建议和基于服务型制造网络现有状态的网络连通性Holon协同需求建议;最后由INFCWA（INFCWA_R）算子或INFCWG（INFCWG_R）算子分别对复合协同和递归协同评价信息集结并得出评价结论。方法设计过程通过例证分析说明根据服务型制造网络目标控制的Holon协同需求评价改进了群组评价效率。