房地产开发项目投资组合的均值——信息熵模型

以方差作为风险度量指标存在着计算复杂、计算结果不稳定等缺陷,本文并将信息熵度量风险的方法引入房地产开发项目投资组合中,建立了房地产投资组合的均值-信息熵模型。实例证明,该模型计算简单,具有较强的有效性和实用性。     

供应链管理的信息经济学分析

在信息化高度发达的21世纪，企业之间的竞争已经发展成为供应链与供应链之间的竞争。然而各供应链节点上的企业之间如何相互合作，达到整条供应链最优．已成为摆在企业面前最重要的问题。本文主要从信息经济学中的信息不对称、道德风险和逆向选择三方面来分析供应链中各企业之间应如何协调，以达到各方都赢的目的。     

The micro-foundations of intertemporal price discrimination

Summary. This paper investigates the optimality of intertemporal price discrimination for a durable-good monopoly in a model where infinitely-lived households face an intertemporal budget constraint, and consume both durable goods and non-durable goods. We prove that the optimal price of the durable good is not constant, and may decrease or increase over time. Some households may choose to purchase the durable good at a later date, and pay lower or higher prices, since the gain in discounted utility of consuming more of the non-durable good more than compensates for the loss in utility from delaying the consumption of the durable good.Received: 12 March 2004, Revised: 7 January 2005, JEL Classification Numbers: D40, D42, D91.I would like to thank C.D. Aliprantis, the Editor, and an anonymous referee for their generous advice, and constructive comments and suggestions. I have also enjoyed discussions with John Quah on the subject. Research support from the Wharton-SMU Research Centre, Singapore Management University, is gratefully acknowledged.     

体系创新与路径选择

在经过“ISO9000质量体系认证热”之后,国内不少获证组织苦于所建体系运作效率低下而陷于迷茫之中。本文针对我国认证发展状况及所存在的问题,指出企业质量管理体系面临着创新的紧迫任务,进而从体系运行机制和文件生态学的视角,提出可供选择的路径。     

Delaying integration of immigrant labor for the purpose of taxation

Delayed integration (DI) is a rule for taxing migrants. It requires that immigrants be taxed in the host country only after some period of transition. Conversely, emigrants are released from the obligation to pay taxes only after a certain period. DI is an alternative to the Employment Principle and the Home-Country Principle. The former governs the international taxation of labor. The latter is a close substitute for the Nationality Principle, on which US tax law is based. The paper studies DI in a setting which allows one to trade off the efficiency costs of distortionary taxation and of wasteful government.     

论我国企业财务管理目标的现实选择

企业由于所面临的财务管理环境存在着差异，因而其财务管理的目标也并非是完全一致。所以．企业只有从自身的实际需要和客观条件出发，确定合理的财务管理目标。本文从现有的几种观点出发，探讨适合我国企业的切实可行的财务管理目标。     

“Itô's Lemma” and the Bellman Equation for Poisson Processes: An Applied View

Using the Hamilton-Jacobi-Bellman equation, we derive both a Keynes-Ramsey rule and a closed form solution for an optimal consumption-investment problem with labor income. The utility function is unbounded and uncertainty stems from a Poisson process. Our results can be derived because of the proofs presented in the accompanying paper by Sennewald (2006). Additional examples are given which highlight the correct use of the Hamilton-Jacobi-Bellman equation and the change-of-variables formula (sometimes referred to as ``Itô's Lemma'') under Poisson uncertainty.     

The Effect of Risk Characteristics on the Willingness to Pay for Mortality Risk Reductions from Electric Power Generation

The objective of this study is to estimate willingness to pay (WTP) for the reduction of mortality risks caused by fossil fuel (natural gas, coal and oil) versus nuclear electric power generation systems and to examine the influence of risk characteristics involved with electric power generation on WTP. A choice experiment was conducted to achieve these objectives. The attributes for nuclear risks in the experiment included the probability of disasters and the expected losses if a disaster occurs. We find evidence of (i) a baseline effect (where WTP is sensitive to hypothetical versus actual baseline expected mortality); (ii) a ‘labeling effect,’ where, surprisingly, the term ‘nuclear’ has no effect on WTP, but the term ‘fossil-fueled power generation’ results in lower WTP; and (iii) disaster aversion, meaning that people focus on the conditional loss from a nuclear disaster, not the probability. We also find that the WTP for reducing deaths from a nuclear disaster is about 60 times the WTP for routine reducing fossil-fuel generation-related deaths.     

Robust political economy

This paper introduces the idea of “robust political economy.” In the context of political economic systems, “robustness” refers to a political economic arrangement's ability to produce social welfare-enhancing outcomes in the face of deviations from ideal assumptions about individuals' motivations and information. Since standard assumptions about complete and perfect information, instantaneous market adjustment, perfect agent rationality, political actor benevolence, etc., rarely, if ever actually hold, a realistic picture and accurate assessment of the desirability of alternative political economic systems requires an analysis of alternative systems' robustness. The Mises-Hayek critique of socialism forms the foundation for investigations of robustness that relax ideal informational assumptions. The Buchanan-Tullock public choice approach complements this foundation in forming the basis for investigations of robustness that relax ideal motivational assumptions. JEL Code B53, P16, P26     

企业可持续发展的战略选择：社会责任管理

在经济全球化的背景下 ,社会责任管理是任何一个企业都不能回避的问题 ,它关系到企业的生存和发展。企业应该把社会责任管理作为可持续发展的战略选择 ,并努力构建有效的社会责任管理模式。