基于反馈控制的铁路运输企业信用管理

针对运输业的研究趋势及现行铁路运输企业发展特点，基于控制论和反馈原理将反馈控制应用于铁路运输企业监督管理的全过程中，提出对铁路运输业信用分级评价实时控制方法。为加强铁路运输业内部管理，调节企业生产运营过程中的偏差，构建集企业信用信息实时采集与评价、控制对策优化产出、企业实时控制为一体的反馈控制系统，并且结合实际经验，分析由这些反馈如何优化控制监管过程和监管内容，保证监管目标得以实现及优化铁路运输业内部管理。     

Investment subsidies and redistributive capital income taxation in a neoclassical growth model

How do investment subsidies bear on pure redistribution when coupled with capital income taxes? In a heterogeneous agent, neoclassical growth framework it is found that on impact, with no optimizing behavior, investment subsidies are good for growth but bad for redistribution. The opposite holds for capital income taxes. But when the government acts as a Stackelberg leader vis-à-vis the private sector (the follower), the optimal feedback policy is by construction time-consistent and implies that in a long-run optimum the tax scheme does not distort accumulation. This holds regardless of social preferences. For the feedback Stackelberg equilibrium I find that (pure) redistribution can go either way and capital income taxes are nonzero in the long-run, time-consistent optimum, depending on the social weight of those who receive redistributive transfers, the distribution of pretax factor incomes, and the intertemporal elasticity of substitution. It is argued that investment subsidies may be an important indirect tool for redistribution, and may allow for the separation of “efficiency” and “equity” concerns.     

Long-run scarring effects of meltdowns in a small-scale nonlinear quadratic model

We build a small-scale nonlinear quadratic (NLQ) model in which credit feedback and regime switches in the output gap affect the adjustment path of the economy towards a steady state. The central bank solves a finite-horizon decision problem where the policy rate also can be zero or negative. We estimate this model by nonlinear seemingly unrelated regression method (NLSUR) and using the parameters to explore policy scenarios. The latter projects long-run dynamics after a large demand contraction leading to scarring effects on the economy. We point out three main results. First, while scars are dominant when the central bank follows a standard Taylor rule, unconventional monetary policy (UMP) – such as Quantitative Easing – mitigates the output decline in both the short and the long run. Second, a zero natural interest rate curtails the central bank’s ability to adjust the economy and mitigate scars. Third, financial constraints leave the deepest scars even if UMP is active.     

品牌延伸会影响品牌个性吗？——反馈效应的视角

品牌个性和品牌延伸都是品牌管理的重要内容，二者相互影响，过去的研究着重于品牌个性对品牌延伸的影响，但品牌延伸亦会影响品牌个性发展。选取我国医药行业老字号品牌云南白药作为研究对象，首先对云南白药的品牌个性进行探索性研究，通过四个定性研究确定云南白药品牌个性的项目词汇库，然后通过问卷调查获得的353份样本进行探索性因子分析，确定了云南白药的品牌个性的三个品牌个性维度，即经典真诚、可靠安全、独特神秘。在此基础上，针对云南白药向日化产品的品牌延伸如何影响其品牌个性提出理论假设，通过问卷调查获取205份样本，应用回归分析对假设进行检验，发现品牌延伸的两个维度情感延伸和功能延伸对品牌个性都有显著的正向影响，但功能延伸对品牌个性的正向影响更加显著，而且功能延伸和情感延伸对品牌个性各个维度的影响效果不一。     

Imitation,performance feedback,and outward foreign direct investments by emerging market firms

Extending the rational-based perspective of imitation, this study investigates how emerging market firms (EMFs) selectively imitate the frequency of outward foreign direct investment from two theoretically connected role models, i.e., large firms in an industry and board-interlocked firms. We posit that large and board-interlocked firms have differential values in endowing legitimacy and providing information because of their differences in terms of visibility to outsiders and value of acquired information. Using performance feedback as a moderator, we also indicate that EMFs performing above aspiration level decrease their imitation of large firms and board-interlocked firms. We also find that EMFs performing below aspiration level are more likely to imitate interlocked firms but less likely to imitate large firms.     

双元领导对积极偏离创新行为的影响研究——基于认知-情感复合视角

基于认知-情感理论，研究双元领导影响积极偏离创新行为的认知和情感作用机制与边界条件。采用Bootstrap、多元层次回归等方法对414份样本数据进行分析，结果表明：双元领导对积极偏离创新行为有显著正向影响；内部网络连带强度与反馈寻求行为在双元领导与积极偏离创新行为之间起中介作用；领导认同不仅正向调节双元领导与内部网络连带强度和反馈寻求行为之间的关系，还正向调节双元领导通过内部网络连带强度、反馈寻求行为影响员工积极偏离创新行为的间接作用。     

泄流诱发水工结构振动问题的综合集成研讨

以高拱坝泄洪振动为背景,对从水工、水弹性模型到数值模型,从模糊模型到原型观测的广泛研究进行综合概括,探讨大流量泄洪诱发水工建筑物(泄洪拱坝、导墙、挑溢流厂房、闸墩)的振动问题。指出应用水弹性模型和计算机"复合模型"方法最为合理,可达到从定性到定量的转变。表述对大型水利工程(三峡、二滩、小湾、构皮滩、溪洛渡、向家坝等水电站)大流量泄洪振动实际有关的研究,以水弹性模型为主导,以数值为配合,以原型观测为验证的方法是合适的。认为综合集成方法比较符合大型系统的研究。