基于共同持有资产的银行间接关联网络研究

金融市场是一个复杂系统，银行之间不仅有直接的拆借关系，还能够通过投资市场建立间接关联。本文分析了资产内生相关性、资产降价出售以及银行投资行为等因素对银行间接关联程度的影响，基于这些因素通过持有共同资产构建银行系统的间接关联，并以此为基础通过平面极大过滤图方法生成银行间接关联网络，论证了该网络中的系统重要性银行，并通过对该网络结构特征的分析，发现间接关联网络具有小世界和无标度等特征，这些特征与银行通过直接拆借形成的网络相似。本文对于银行间接关联网络的研究不仅能够更加清晰地了解银行之间的关系，也为银行系统性风险的监管提供了新的视角。     

A novel approach based on multiple correspondence analysis for monitoring social networks with categorical attributed data

In in most cases, the distribution of communications is unknown and one may summarize social network communications with categorical attributes in a contingency table. Due to the categorical nature of the data and a large number of features, there are many parameters to be considered and estimated in the model. Hence, the accuracy of estimators decreases. To overcome the problem of high dimensionality and unknown communications distribution, multiple correspondence analysis is used to reduce the number of parameters. Then the rescaled data are studied in a Dirichlet model in which the parameters should be estimated. Moreover, two control charts, Hotelling’s T² and multivariate exponentially weighted moving average (MEWMA), are developed to monitor the parameters of the Dirichlet distribution. The performance of the proposed method is evaluated through simulation studies in terms of average run length criterion. Finally, the proposed method is applied to a real case.     

网络扶贫的内涵及实践特色

借助文献研究和对比研究，在解释网络扶贫内涵的基础上，探讨了网络扶贫的实践特色。研究发现，网络扶贫能够推动扶贫思维的深层变革：从单向思维到互联网思维；助力扶贫对象的精准识别：从主观判断到科学界定；促进扶贫动力的内外融通：从外源救济到内生崛起；推进扶贫主体的系统升级：从单一分离到通力合作；优化扶贫路径的实践切入：从共性举措到个性特色；保障扶贫效果的稳定有序：从短期快速到长期持续。因此，在网络扶贫的过程中，既要注重提升网络扶贫主体的人力资本、加强农村互联网基础设施建设，又要注重构建网络扶贫信息服务体系、培育贫困地区特色产业，推进网络公益扶贫有序发展。     

社会资本与身心健康--概念辨析基础上的关系再检验

社会资本与健康研究领域存在核心概念界定不清与理论解释欠缺两大不足。文章在社会网络的视角下对社会资本、社会凝聚和社会支持三个相互杂糅的概念进行辨析区分，并在此基础上以调查数据实证检验了社会资本对身心健康的作用效果与影响机制。结果显示，在控制社会凝聚和社会支持作用的条件下，社会资本依然对自评健康和心理健康存在显著的独立影响，但其对两种健康在影响因素和影响方向上呈现一些差异。其中，网络规模和网络顶端对自评健康和心理健康都具有显著的正向作用，而心理健康同时还受到网络差异的负向影响。从这个角度而言，社会资本对个体身心健康的影响并不必然是积极正向的。     

Transient detailed balance and product form for reaction networks

This paper explores the boundary of the set of reaction networks that have an exact transient (truncated) multidimensional Poisson or product-form distribution for the number of particles of different types. Motivated by the birth–death process, we introduce the notions of transient detailed balance and delay functions, and use these notions to obtain the novel transient product-form distribution in a coagulation-fragmentation process for polymers with a tree-like structure from that of the pure coagulation process.     

Who are the active and central actors in the ‘rising civil society’ in Mexico?

The debate about the rise of civil society in Mexico suggests that the processes of political and economic liberalization are multiple and uneven and, thus, have different and contradictory effects on different social groups. This study takes such arguments into account and examines the nature of collective identities and social networks that are more likely to be mobilized in the rising civil society. Who, with what types of social networks and identities, are the active actors in this rising civil society in Mexico? This study also attempts to identify the central actors who take an active part in multi-sector coalitions. As such a broad coalition often leaves profound effects on politics and society, it is vital to ask which actors are likely to take an important step toward multi-sector coalition making. Using a catalog of 1797 protest campaigns collected from three Mexican newspapers between 1964 and 2000, event frequency analysis is employed to find active actors and social network analysis – blockmodel method and degree centrality measure – is applied to uncover central actors. The analyses reveal that while workers, peasants, or students continue to be very active, the centrality of these actors in contentious networks and coalitions has not increased. New central actors in the rising civil society turn out to be civic associations and NGOs formed around single issues, such as environment, retirement, and human rights. When a multi-sector coalition occurs in contemporary Mexico, NGOs and civic associations are likely to play a crucial role in it.     

Fragments of Modernization: Domestic Spaces Indicating Traditional Dialects in a Modern Speech

This article examines the change in Turkish domestic space through modernization and, in particular, the artifact of lace, as a nonchanging object in Turkish home in its relationship with the “traditional” and the “modern” domestic settings. Thereby it investigates how traditional and modern settings are defined in Turkish society and, this leads to a further analysis of the modernization process in Turkey within the scope of Turkish house and its domestic settings. The aim of the article is to analyze lace as an agent, which is an actant of the change in domestic settings, to read the connection between the daily life of people and social lives of artifacts. Therefore, examining the dialogue of lace with traditional and modern domestic settings provides to deconstruct the network of the artifact, the house and the individual during the modernization process that Turkish society has been through. The theoretical perspective of the article relies on a material‐semiotic approach with an emphasis on Latour's Actor‐Network Theory and, the methodology of the article is based on ethnography: It includes observations and semi‐structured interviews conducted with people from different social environments focusing on the meaning and the use of lace in domestic environment.     

高铁网络下的中国十大城市群旅游交通格局及其经济联系的比较研究

旅游交通是旅游经济发展中重要的内容之一,通过对中国十大城市群城市旅游交通可达性、铁路交通流分布情况与旅游经济联系、总量和隶属度进行计算,借助Arcgis10.2对中国十大城市群交通空间流分布情况和旅游经济联系进行空间可视化处理,并对计算结果进行综合比较分析。研究发现:高铁使得中国十大城市群城市旅游交通可达性水平得到大幅提升,且交通流分布均衡。中国十大城市群城市可达性的提升给城市旅游经济带来了一定的积极影响。高铁网络下中国十大城市群旅游经济联系分布不均衡。