一类时滞微分系统有界解的收敛性

研究了一类时滞微分系统解的渐近性态．在一些比已有文献通常附加的局部李普希兹条件更弱的条件下，证明了此系统的每个有界解趋于某平衡态．我们的结果推广了已有的一些结论．     

基于信号博弈的阳澄湖大闸蟹绿色标签市场应用分析

水产品绿色标签对消费者来说是高质量的信号,对卖家来说则是卖出高价的资本.但是欺诈行为的存在损害了消费者和其他卖家的利益,扰乱了市场秩序.以阳澄湖大闸蟹为例,通过信号博彝理论,对螃蟹市场中关卖双方的消费行为进行博彝分析,得到了精炼贝叶斯Nash均衡.     

营业税改征增值税的税率评估——基于可计算一般均衡模型的研究

营业税改征增值税是完善我国税制的一个重要举措，确定各个产业部门改征增值税后的税率是其中一个关键的环节。运用可计算一般均衡模型可以评估营业税改征增值税之后不同税率的选择对宏观经济和产业结构的影响。政策模拟的结果显示，目前正在实施的营业税改征增值税的试点方案权衡了对财政收入和经济增长以及经济结构的影响，是对经济运行影响较小的稳健选择。     

条形浅基础极限承载力的滑移线解

当网格剖分足够密时，采用差分解法可得到具有足够精度的有重土静力极限平衡数值解。根据大量计算分析，揭示了有效旁侧荷载宽度L、无量纲极限承载力 / 与内摩擦角 、无量纲参数λ的内在规律，据此将滑移线法数值解拟合为简洁的解析表达式，并在理论上证明了这一规律。通过与几种经典承载力公式的比较和分析，综合对该拟合公式的可靠度分析，论证了其正确性和可行性。     

Existence of an Arbitrage about Portfolio in an Unequilibrium Market

This article has discussed the problem of an arbitrage about an portfolio in an unequilimarket and got a determinable theorem about existence of an arbitrage about an portfolio. According to this theorem,an arbitrage about portfolio is not existing if there exists a respect martignal measure.A structural result about existence of arbitrage about an portfolio in a market is gotten. All results represent the existence of an arbitrage about an portfolio is related closely to the type of market.     

Stability Analysis on Excavated High Slope of Mozong River Power Station in Wulong

The subject matter of this paper is to analyze the stability of excavated high slope. On the base of typical engineering case in Wulong, Chongqing, the geological conditions and potential failure pattern of the high slope are discussed. Then, the limit equilibrium method and the stereographic projection method are used to synthetically analyze the stability of excavated high slope. As a result, it indicates that the stability of the high slope in insufficient and some retaining structures ought to be adopted for the high slope as soon as possible.     

Comparison between Calibration Procedure and Econometric Estimation

The two methods of estimating parameter in computable general equilibrium(CGE) model are introduced and compared:the calibration procedure and econometric estimation. The conclusions are:the estimation of parameter in CGE model must use the calibration procedure coupled with the econometric estimation method;the elasticity of output with respect to labor input,the marginal expenditure share for households and price elasticity of export demand are estimated by econometric estimation method;and other parameters of the CGE model can be get by calibration procedure.     

Nash Equilibrium Mechanic of Environmental and Human Capital

The externality of surrounding is introduced into the 2-capital of economical increasing models, which includes human factors, to explore the influences of circumstances contradiction on the human capital formation. The normal and special nash equilibrium of environmental and human capital is presented through a limited boundary model of overlapping generations. The character of equilibrium trail and its economical meaning are examined. The study on the model shows that laissez faire economy will be either stagnant,growing,or collapsing in the long-run,depending on the returns of the learning technology with respect to the two kinds of capital,the initial state of economy,and the relative price of the environmental and consumption goods.