The politics of redistributive social insurance

This paper analyses the political support for a social insurance that includes elements of redistribution when there exists an imperfect private insurance alternative. Individuals differ both in their income and risk. The social insurance is compulsory and charges an income-related contribution with pooling of risks. The private insurance is voluntary and charges a contribution based on individual risks. However due to the adverse selection problem, private insurance companies provide only partial insurance. Adopting a non-expected utility model, we show that there is a general majority support for social insurance and that this support is increasing with risk aversion. We also show that a mixed insurance is politically impossible, regardless of the degree of redistribution of social insurance and the joint distribution of risk and income in the population. Lastly, we analyse how the political support for social insurance is affected by any change in its redistributive component and the possibility of using genetic tests.     

Selection dynamics and adaptive behavior without much information

This paper uses the experimental method to investigate behavior in a coordination game when the information available to subjects is limited to their feasible choices and their experienced payoffs. In the experiment subjects converge to an absorbing state at rates that are orders of magnitude faster than reinforcement learning algorithms, but slower than under complete information. This state is very close to a mutual best response outcome. All cohorts converged to the market statistic predicted by the interior equilibrium regardless of the information conditions or the stability conditions. Eric Battalio programmed the graphical user interface. The National Science Foundation and Texas Advanced Research Program provided financial support. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation or the Texas Advanced Research Program.     

基于生命周期的虚拟企业知识活动分析及其伙伴选择过程研究

随着新经济的到来,知识越来越成为企业快速响应市场机遇和获取竞争优势的最短缺资源.而企业自身知识资源的有限性使企业越来越多地采用虚拟企业的高级形态--知识联盟型虚拟企业来弥补企业知识资源的不足以快速响应变化的市场需求.本文首先对知识联盟型虚拟企业的知识缺口类型进行研究和划分,然后分析并描述虚拟企业生命周期各阶段的知识活动;在此基础之上,探讨虚拟企业组建阶段考虑知识要素的伙伴选择过程;最后,针对不同的知识缺口,提出伙伴选择过程的评价指标体系设计中应考虑的知识性因素.     

Optimal Intervention Policies for a Small Monetary Economy

We analyze the gains from trade for a small cash-in-advance economy with endogenous labor supply and learning-by-doing in the accumulation of human capital. Contrary to previous findings, we show that free trade is not optimal independently of the relative amount of cash required for the purchase of each good. Furthermore, a monetary rule à la Friedman can eliminate distortions deriving from the cash-in-advance constraint only under segmented financial markets; in any case, it cannot restore the economic optimum. Finally, we identify government intervention policies, such as wage and export subsidies, that can be welfare improving.     

遗传模拟退火算法在配送中心选址中的应用

物流配送中心是现代物流系统的枢纽,而配送中心地址的确定是物流系统分析的核心内容.合理的配送中心选址可以降低企业的运营成本,本文根据配送中心地址问题的特点和要求,提出用遗传模拟退火算法解决选址模型.最后通过一个实例求得了模型的最优解,验证了该算法的有效性.     

存货会计政策与成本流动假设的经济学分析

存货是大多数企业的重要流动资产,基于不同的成本流转假设理论,存货计价方法一般可划分为具体辨认法、平均成本法、先进先出法、基本存货法、后进先出法等。存货会计政策选择具有广泛的经济后果,影响企业的财务状况、收益质量、税收成本、现金流量、经营者业绩与其报酬、公司股票价格及报表使用者理解会计信息等。本文认为,各种存货计价政策对企业净利润产生的差异均属于“时间性差异“,在若干个会计期间内,企业无论选择何种会计政策,产生的净利润和经营性现金流量都应该是相等的,企业之所以进行会计政策选择是为了取得上述会计数据不同时间分布带来的各种可能的经济利益。     

Seasonal decomposition and forecasting of telecommunication data: A comparative case study

In this paper, forecasting models for the monthly outgoing telephone calls in a University Campus are presented. The data have been separated in the categories of international and national calls as well as calls to mobile phones. The total number of calls has also been analyzed. Three different methods, namely the Seasonal Decomposition, Exponential Smoothing Method and SARIMA Method, have been used. Forecasts with 95% confidence intervals were calculated for each method and compared with the actual data. The outcome of this work can be used to predict future demands for the telecommunications network of the University.     

中国货币政策传导机制分析——利率渠道的实证分析

市场经济条件下，在发达的货币市场和有效的金融机制基础上，货币政策主要通过利率、汇率、非货币资产和信贷传播四条途径影响宏观经济总量。本文重点通过对利率传导渠道的实证分析，说明中国由于利率管制等方面对货币政策传导的阻滞作用，中央银行的货币政策意图不能有效地指导实体经济，进而对疏导货币政策的传导机制提出对策建议。     

利率市场化中的风险转移与商业银行风险规避

利率市场化通过对利率管制下扭曲利率的校正 ,实现了资源的有效配置 ,促进了经济增长。然而利率市场化以后 ,基准利率的确定、利率的波动趋势以及外资金融机构的进入 ,将使商业银行面临风险转嫁的可能。商业银行必须适时建立起完善的风险防范和风险管理制度。     

建设项目选址的规划论证

区域重大建设项目选址涉及到区域社会、经济、环境等各个方面,其选址的合理与否关系到区域社会经济的持续、快速、健康发展.科学的分析论证可加强建设项目的可操作性,也可使其规划管理依据更加充分、决策更加科学合理.基于此认识,提出了建设项目选址符合城市规划论证的主要内容,并以330千伏西安西南郊变电站选址为例进行了详细的说明和论述.