有色金属行业环境风险联动控制体系研究--基于“政府、社会、行业”三重视角的PSI博弈模式

有色金属行业在国民经济发展中占据着重要地位,但其高能耗、高污染的发展模式导致行业的环境风险持续加剧,加强对有色金属行业环境风险的管理尤为迫切。文章结合有色金属行业的发展实际,综合分析了在政府（P）、社会（S）和行业（I）三级因素影响下的有色金属行业环境风险的控制要素,利用博弈模型构建了基于PSI博弈模式的有色金属行业环境风险联动控制体系,并结合紫金矿业集团污染事故进行案例分析,提出了实行该联动控制体系的配套措施。     

FDI、融资约束与中国企业投资

基于扩展的企业投资行为欧拉方程,利用1999~2007年中国工业企业微观数据,采用动态面板方法,分析了FDI是否以及如何缓解中国企业投资融资约束问题。研究结果表明,中国企业投资普遍存在融资约束,私营企业、新企业、中高技术行业的融资约束更为明显;FDI主要通过行业垂直关联缓解融资约束,缓解作用对私营合资企业、新企业、中高技术企业更为明显;FDI通过缓解融资约束,促进了中国企业投资和经济增长。     

Corporate Venture Capital and Its Contribution to Intermediate Goods Firms in South Korea*

Set by government, corporate, financial and individual sources, venture capitalists in Korea have adapted themselves to the new and uncertain venture capital market through stand‐alone and syndicated investments. The present study raises questions about whether various financial sources contributed differentially to their portfolio firms during the market boom of 2000. Results show that no single capital source showed better performance, and only corporate venture capitalists contributed to intermediate goods firms. The latter finding might reflect the unique ability of corporate venture capitalists to use vertical value‐chain linkages for their investments.     

大型交通重点项目党建统管制工作创新研究

党建统管制是大型交通重点项目的党建新模式。但面对新形势，这一工作模式也需要进一步创新。要从加强在建项目党组织的建设管理、积极搭建和充分利用与施工所在地党建联动平台、注重党组织文化建设、正确处理党建统管制工作与大型交通重点项目建设之间的辩证关系等方面来加强和优化大型交通重点项目党建统管制工作，促其在实践中得到充分的运用，保证优质、安全、高效、廉洁地完成重大交通建设项目。     

ESTIMATION OF VALUE AT RISK AND RUIN PROBABILITY FOR DIFFUSION PROCESSES WITH JUMPS

In this paper we give upper bounds for both the Value at Risk   VaR _α,  0 < α < 1  , and for ruin probabilities associated with the supremum of a process driven by a Brownian motion and a compound Poisson process. We obtain lower bounds for the same Value at Risk, and for different cases we discuss the behavior of the bounds for small α. We prove our bounds are "asymptotically" optimal, as α tends to zero. The ruin probabilities obtained are related to other bounds found in recent literature.     

Dynamic supernetworks for the integration of social networks and supply chains with electronic commerce: modeling and analysis of buyer–seller relationships with computations

In this paper, we develop a dynamic supernetwork framework for the modeling and analysis of supply chains with electronic commerce that also includes the role that relationships play. Manufacturers are assumed to produce a homogeneous product and to sell it either through physical or electronic links to retailers and/or directly to consumers through electronic links. Retailers, in turn, can sell the product through physical links to consumers. Increasing relationship levels in our framework are assumed to reduce transaction costs as well as risk and to have some additional value for both sellers and buyers. Establishing those relationship levels incurs some costs that have to be borne by the decision-makers in the supernetwork, which is multilevel in structure and consists of the supply chain and the social network. The decision-makers, who are located at distinct tiers in the supernetwork, try to optimize their objective functions and are faced with multiple criteria including relationship-related ones and weight them according to their preferences. We establish the optimality conditions for the manufacturers, retailers, and consumers, derive the equilibrium conditions, and provide the variational inequality formulation. We then present the projected dynamical system, which describes the disequilibrium dynamics of the product transactions, relationship levels, and prices on the supernetwork, and whose set of stationary points coincides with the set of solutions of the variational inequality problem. We also illustrate the dynamic supernetwork model through several numerical examples, for which the explicit equilibrium patterns are computed.     

宏观税收政策与居民消费水平新探

宏观税率直接关系到社会的宏观经济政策和社会的整体经济运行,也关系到居民的日常消费与投资行为。基于经典的宏观经济分析理论,从宏观经济协调发展平衡系统出发,从理论上借助于税收收入的科学计算模型,得出有关动态均衡经济系统的最优税率的一个比较优良的估值模型。该结果表明宏观税率的确定主要决定于社会经济发展的水平和政府支出的规模,取决于社会固定资本存量的规模,而与居民消费水平没有直接的因果关系,从而为宏观税收政策的制定与优化提供一个切实的理论模型。     

连锁企业核心扩散与共生效应分析

研究连锁经营的核心扩散机理旨在揭示连锁单元扩张的内在规律。连锁经营就是要使核心能力通过连锁机制和连锁单元得以充分发挥,使它的经济运行效率达到可能的最优状态;连锁经营可以克服单体经营的有限性,从而大大提高经营效率,使连锁经营的生存能力和扩张能力提高,从中国连锁经营发展的进程来看,影响连锁单元增长速度的主要原因还是连锁总部的核心能力和连锁环境条件,而不是业内之间的竞争。     

我国证券市场的板块联动效应及模糊聚类分析

以上海证券市场的各分类样本指数为研究对象,首先分析了传统的五大类指数、A股、B股之间的相互及其与大盘的关联性,验证了B股市场运行的独立性。然后随机抽样了24个分类板块指数,研究了它们之间的相关性,并运用模糊聚类分析法对其进行了聚类分析。最后根据实证研究结果,对投资者提出有一定参考意义的投资操作建议。     

我国产业关联外溢的实证研究——基于交通设备制造业的数据

经济系统中各个产业之间存在着关联,而一国各个产业之间的关联,部分外溢为国内产业与国外产业之间的关联,即存在着产业关联外溢的问题。本文基于中国交通设备制造业的数据,分析2002-2010年该产业在投入产出表中的相关变化,测算该产业及其产业关联外溢对中国经济增长的效应;并进一步考察了产业关联外溢与国内增加值之间的动态联系。最后,探讨了产业关联外溢问题对产业体系内生形成的启示。