供应链合作关系发展及制约因素分析

供应链合作关系的核心就是供应链合作伙伴之间的关系,文章从供应链合作关系形成与发展的过程来说明在供应链企业中建立战略合作伙伴关系是供应链合作的必然趋势,同时,分析了影响供应链合作关系形成的驱动力和环境因素,并提出了供应链合作关系与环境关系模型以及影响供应链合作关系的多变量模型。     

物流信息系统对供应链合作效应分析——以韩国报关企业为例

分析了物流信息系统对供应链合作绩效的影响,发现物流信息系统对供应链内部合作和供应链间合作的服务以及费用绩效都有较大影响,指出供应链合作是提升供应链绩效水平的充要条件。     

供应链合作关系发展探析

从供应链合作关系的界面结构的发展来说明在供应链企业中建立战略合作伙伴关系是供应链合作的必然趋势，同时，分析了影响供应链合作关系形成的驱动力和环境因素，并提出了供应链合作关系与环境关系模型以及影响供应链合作关系的多变量模型。     

物流信息系统对供应链合作效应分析——以韩国报关企业为例

分析了物流信息系统对供应链合作绩效的影响,发现物流信息系统对供应链内部合作和供应链间合作的服务以及费用绩效都有较大影响.指出供应链合作是提升供应链绩效水平的充要条件.     

基于扎根理论供应链金融合作影响因素研究

供应链金融作为银行金融产品,为中小企业融资难提供了解决方案,然而,供应链金融的高风险性,也对供应链金融的合作关系产生巨大威胁。本文通过扎根理论对供应链金融合作影响因素进行识别,并建立供应链金融合作影响因素模型,为供应链金融合作企业提出合理性建议。     

基于垄断竞争理论的供应链合作竞争机制分析

在垄断竞争理论的基础上,以供应链合作竞争机制为研究对象,通过构建供应链模型,首先对供应链合作机制进行研究,推导出供应链合作指数,并以此指数为依据判断供应链企业的合作决策;再通过对供应链竞争机制研究,推导出竞争机制即中间产品的价格制定机制。最后通过合作和竞争机制的相互作用,得出了供应链合作竞争融合机制。文章最后认为,供应链是松散型企业通过合作竞争形成的组织,它以获取垄断利润为目的并在内部进行分配。     

基于信用成本的供应链企业合作问题博弈分析

在实现供应链管理的研究中,如何处理好企业间合作关系是成功实施供应链管理的关键,而供应链合作企业信用问题则是整个供应链存在和发展的基础。应用博弈论思想对供应链环境下的企业合作问题进行了理论研究,并在运用博弈论方法对供应链企业间合作问题进行详细研究的前提下,提出了基于信用成本的供应链企业机制分析模型。     

供应链合作价值创新:供应链管理的新模式

供应链合作价值创新是企业发挥供应链成员间合力满足顾客需求和应对市场竞争的有效方式。区分了供应链合作与供应链合作价值创新，并探讨了价值链合作价值创新的实现方式。     

供应链合作伙伴合作满意度的模糊综合评判

根据供应链合作伙伴合作满意度的模糊性特点,构造出以制造商为核心的供应链合作伙伴合作满意度的多因素评判指标体系,建立了制造商对供应链合作伙伴合作满意度的模糊综合评判模型,从而对制造商的供应链合作伙伴所提供服务与合作满意程度进行综合衡量。     

供应链企业博弈的利益分析

企业的经营行为是建立在理性博弈基础之上的。本文从企业理性出发,分析了供应链企业在从自身利益出发和从供应链整体利益出发时博弈的企业得益和供应链整体得益,分析了企业在非合作博弈情形下风险分担的失效;并说明供应链企业合作对改进供应链效率的重要性,以及分析了供应链企业合作的前提条件。     

Analysis of high dimensional multivariate stochastic volatility models

This paper is concerned with the Bayesian estimation and comparison of flexible, high dimensional multivariate time series models with time varying correlations. The model proposed and considered here combines features of the classical factor model with that of the heavy tailed univariate stochastic volatility model. A unified analysis of the model, and its special cases, is developed that encompasses estimation, filtering and model choice. The centerpieces of the estimation algorithm (which relies on MCMC methods) are: (1) a reduced blocking scheme for sampling the free elements of the loading matrix and the factors and (2) a special method for sampling the parameters of the univariate SV process. The resulting algorithm is scalable in terms of series and factors and simulation-efficient. Methods for estimating the log-likelihood function and the filtered values of the time-varying volatilities and correlations are also provided. The performance and effectiveness of the inferential methods are extensively tested using simulated data where models up to 50 dimensions and 688 parameters are fit and studied. The performance of our model, in relation to various multivariate GARCH models, is also evaluated using a real data set of weekly returns on a set of 10 international stock indices. We consider the performance along two dimensions: the ability to correctly estimate the conditional covariance matrix of future returns and the unconditional and conditional coverage of the 5% and 1% value-at-risk (VaR) measures of four pre-defined portfolios.     

The Geography of Innovation in China and India

The BRICS countries in general, and China and India in particular, are now widely regarded as the areas of the world likely to challenge the economic leadership of the United States (US) and the European Union (EU). A large part of this challenge will come from rapid technological catch‐up by China and India. Yet, despite a recent rise in interest, there is limited knowledge about how and where innovation takes place in these two leading emerging countries and to what extent the Chinese and Indian territorial systems of innovation differ from those in the EU or the US. In this article we explore the geography of innovation in China and India, concentrating on understanding key territorial‐level innovation trends by country, region and technology field, using the US and the EU as benchmarks. We find significant contrasts between the geography of innovation in China and India and that of the US and the EU. First, the degree of concentration of innovative activities in both countries is extremely high. Levels of agglomeration of innovation in the coastal provinces of China, as well as in Delhi and the South of India, significantly exceed the levels of agglomeration found in the USA and the EU. Secondly, China has witnessed a more rapid increase in the degree of concentration of innovation than India. We posit that the differences in the geography of innovation between, on the one hand, China and India and, on the other hand, between these countries and the developed world are rooted in different institutional settings, different systems of innovation and different national innovation strategies.     

RIP与OSPF协议在中小型网络中的性能研究

论文从网络的拓扑结构与网络设备的性能指标入手,从rip协议与OSPF协议在中小型网络中的运行机理与算法入手,通过分析协议在网络中的稳定性、传输性能等综合性能标,研究了rip协议与OSPF协议的具体算法,最后综合网络设备的性能指标与网络的拓扑结构得出两种协议的最佳匹配网络匹配环境。     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

马克思、恩格斯生态经济思想及其对生态环境法治观的启示

马克思、恩格斯具有丰富的生态经济思想,其中主要包括:自然资源是人类生存发展前提和财富源泉、尊重自然规律和合理调节"物质变换"以及"两个和解"的思想,等等。马克思、恩格斯生态经济思想,为人类走向生态文明奠定了深厚的思想渊源和理念基础,同时对确立科学的生态环境法治观具有重大启示。     

浅谈如何加强水电科技资料管理和保密工作

文章对水电科技资料管理和保密工作的重要性进行了论述,并从内部管理的实际情况出发,分析了如何加强科技管理及科技档案的保密工作,对建立内部管理制度、加强内部控制提出了对策。     

Bourdieu Comes to Town: Pertinence,Principles, Applications

This article frames the themes of the two‐part Interventions section ‘Bourdieu Comes to Town’. I first establish the pertinence of Bourdieu's sociology for students of the city by revisiting his youthful work on power, space, and the diffusion of urban forms in provincial Béarn and colonial Algeria. In both cases, urbanization is the key vector of transformation, and the city, town, or camp the site anchoring the forces dissolving the social fabric of the French countryside and overturning French imperialism in North Africa. These early studies establish that all social and mental structures have spatial correlates and conditions of possibility; that social distance and power relations are both expressed in and reinforced by spatial distance; and that propinquity to the center of accumulation of capital (economic, military, or cultural) is a key determinant of the force and velocity of social change. Next, I discuss four principles that undergird Bourdieu's investigations and can profitably drive urban inquiry: the Bachelardian moment of epistemological rupture, the Weberian invitation to historicize the agent (habitus), the world (social space) and the categories of the analyst (epistemic reflexivity); the Leibnizian‐Durkheimian imperative to deploy the topological mode of reasoning; and Cassirer's command to heed the constitutive efficacy of symbolic structures. The plasticity and productivity of his concepts suggest that Bourdieu can not only energize urban inquiry but also merge it into a broader analytic of the trialectic of symbolic division, social space, and the built environment. This paves a pathway for reconceptualizing the urban as the domain of accumulation, differentiation and contestation of manifold forms of capital, which makes the city a central ground, product, and prize of historical struggles.     

关于城市本质的理论探索

文章界定了城市的本质定义.提出了城市本质构成的三大基础理论:人性理论、需要理论、环境理论;阐述了认识城市本质的理论意义和现实意义.文章认为,城市本质体现了人本主义思想,体现了人在城市发展中主导作用和不可推卸的历史使命.正确认识城市本质,将为我国科学制定城市发展战略和城市规划,合理有效地经营、建设和管理城市提供科学的理论依据.     

论宣传报道在交通运输改革和发展中的重要作用

加强交通运输宣传报道工作,是促进交通运输行业又好又快发展的有效手段和重要途径。文章结合广西交通运输新闻宣传工作实际,分析宣传报道对交通运输发展的影响,探讨宣传报道在交通运输改革和发展中的重要作用。     

WHAT'S TO KNOW ABOUT THE CREDIBILITY OF EMPIRICAL ECONOMICS?

The scientific credibility of economics is itself a scientific question that can be addressed with both theoretical speculations and empirical data. In this review, we examine the major parameters that are expected to affect the credibility of empirical economics: sample size, magnitude of pursued effects, number and pre‐selection of tested relationships, flexibility and lack of standardization in designs, definitions, outcomes and analyses, financial and other interests and prejudices, and the multiplicity and fragmentation of efforts. We summarize and discuss the empirical evidence on the lack of a robust reproducibility culture in economics and business research, the prevalence of potential publication and other selective reporting biases, and other failures and biases in the market of scientific information. Overall, the credibility of the economics literature is likely to be modest or even low.