张力控制系统在变频造纸设备中的应用研究

张力控制在变频造纸设备中的应用是造纸业的控制难题。本文构建了变频造纸设备张力控制系统模型,通过张力检测装置采集张力值,经PLC接收和判定,最终组成了直接张力控制系统,有效地保证了张力的恒定。同时采用Simulink工具箱,模拟和分析了Matlab软件环境下张力控制系统的仿真运行,最终证实了张力控制系统在变频造纸设备应用中的可行性,为张力控制系统的后续研究与发展指明了方向。     

引入自有品牌的供应链激励机制设计研究

针对引入自有品牌的供应链激励机制设计问题,首先在对称信息和非对称信息下建立由两个制造商和一个零售商组成的供应链激励机制模型,接着分析引入自有品牌的供应链激励机制均衡结果,最后对自有品牌引入前后的均衡结果进行比较。通过分析发现,零售商在制造商品牌上的努力水平始终不超过其在自有品牌上的努力水平;在对称信息下,零售商引入自有品牌肯定会使制造商受到损失,而在非对称信息下制造商可能会从中获利。     

学习能力影响下供应链企业间知识交易的最优合约配置!

在知识买方——供应链中的供应商的学习能力为其私人信息的情况下,知识卖方——制造商通过设计将知识交易量与原材料产品折扣价格相结合的合约菜单来甄别供应商的学习能力类型。在此基础上,建立信息不对称情形下的知识交易模型,通过模型求解得出最优的合约配置,并结合信息对称情形下的基准情形对合约菜单的相关性质进行了分析。最后利用数值算例对上述相关性质进行了说明。     

Ambient Taxes Under m-Dimensional Choice Sets, Heterogeneous Expectations, and Risk-Aversion

We consider the design of ambient taxes forrisk-neutral and risk-averse polluters whenpolluters and the regulatory agency haveasymmetric information about environmentalrelationships and probabilities associatedwith random events. Unlike prior work, we showthat under these conditions, optimal ambienttaxes must be firm-specific, and accompaniedby additional incentives to influencepolluters' choices of abatement techniques.     

Real exchange rates: are they dominated by fundamental factors?

Using Bayesian model averaging, we determine which fundamental pair-wise differences suggested by the literature on optimum currency areas give the best explanation of medium-term variability of bilateral real exchange rates. The intercept in the best specification is statistically insignificant, implying that for a hypothetical pair of economies for which the differences were zero, the bilateral real exchange rate would not move. Thus, the ‘non-fundamental’ element of the medium-term real exchange rate variability is, in our sample at least, negligible on average. In other words, floating exchange rate does not in itself imply, on average, more real exchange rate variability in the medium term than an exchange rate peg.     

The hydroelectricity consumption and economic growth in Asian countries - evidence using an asymmetric cointegration approach

ABSTRACT

This study examines the four commonly tested hypotheses in hydroelectricity consumption – economic growth literature for 12 Asian countries. Our results from a recently developed hidden cointegration technique uncover rich and significant relationships between negative and positive components of the variables under consideration. In particular, we find evidence to support the neutrality hypothesis in five countries (Bangladesh, Indonesia, Pakistan, Philippines, and Thailand), the growth hypothesis in four countries (India, Japan, South Korea and Taiwan), and both growth and conservation hypotheses in three countries (China, Malaysia, and New Zealand). These findings suggest that appropriate economic policies should be elaborated on the basis of the country’s specific hydroelectricity consumption–growth nexus. Finally, our new evidence suggests that the lack of stable relationship between hydroelectricity consumption and economic growth documented in previous studies for some of these countries could be due to the failure to properly account for the nonlinearity property in the data.     

不对称信息下餐饮企业绿色供应链管理实践多案例研究

本文通过多案例研究方法研究了餐饮企业在不对称信息下实施绿色供应链管理的实践以及信任关系协调,即企业如何在供应链中有效地传递环境绩效信息,协调机会主义行为与信任合作之间的关系。研究表明：企业通过第三方独立认证,可以构建绿色品牌声誉,从而向利益相关者传递环境绩效信息;通过契约合同及纵向一体化可以实现绿色采购;不对称信息下,企业面临平衡信任合作与机会主义行为之间的矛盾问题,需要通过提高信任程度来实现绿色供应链管理的持续改进。     

投资方与项目公司的委托代理博弈分析

项目投资中,投资人与项目公司之间存在着“委托-代理”关系。由于两者之间的信息非对称,导致了项目投资中道德风险的存在。借助信息经济学中的“委托-代理理论”建立了项目公司道德风险模型,定量的分析了如何通过设立约束机制使投资人实现利益最大化,得出了有利于提高投资人项目管理水平的分析结论。     

ASYMMETRIC INFORMATION AND EXCHANGE OF INFORMATION ABOUT PRODUCT DIFFERENTIATION

We introduce asymmetric information about consumers’ transportation costs (i.e., the degree of product differentiation) in the model of Hotelling. When transportation costs are high, both firms have lower profits with asymmetric information than with perfect information. Contrarily, if transportation costs are low, both firms may prefer the asymmetric information scenario (the informed firm always prefers the informational advantage, while the uninformed firm may or may not prefer to remain uninformed). Information exchange is ex‐ante advantageous for both firms, but ex‐post damaging if transportation costs turn out to be low. If the information is unverifiable, the informed firm does not represent a reliable source of information, since it always prefers to announce that transportation costs are high and there is no contract that induces truthful revelation.     

Does transparency of central banks communication affect credit market? Empirical evidence for advanced and emerging markets

This study examines the effect of the transparency of central banks communication on credit market. In particular, this study investigates how central banks’ effort to provide more detailed information about their objectives regarding the price stability (monetary policy transparency) and financial stability (financial stability transparency) policies are able to mitigate information asymmetry on credit market, through the net interest margin charged by the banks to engage in financial intermediation (credit spread). The findings denote central bank transparency is able to reduce the credit spread. Additionally, the evidence suggests the effect of central bank transparency on the credit spread is greater in emerging markets, where there is less information available on credit market. In brief, transparency in central banks communication is an important tool to mitigate the information asymmetry in the credit market.