Environmental Valuation with Imperfect Information The Case of the Random Utility Model

This paper considers welfare analysis with therandom utility model (RUM) when perceptions ofenvironmental quality differ from objectivemeasures of environmental quality. Environmental quality is assumed to be anexperience good, so that while perceptions ofquality determine choices, ex postutility is determined by objective quality. Given this assumption, I derive a measure ofthe welfare impact of changes in environmentalquality, and I show how this new welfaremeasure differs from the traditional welfaremeasure developed by Hanemann (1982). This newwelfare measure provides an approach tomeasuring the value of information aboutenvironmental quality within the framework ofthe random utility model.     

IntraLATA long-distance demand: carrier choice, usage demand and price elasticities

Competition in the long-distance market in the US continues to intensify; the 1996 Telecommunications Act has led to increased competition in long-distance telephony especially as the Regional Bell Operating Companies have begun to gain entry to long-haul, long-distance markets. In order to better understand the implications of having increased service offerings, models of how customers choose between carriers (and the impact of this choice on subsequent usage) will be useful. We develop the first publicly available models that simultaneously estimate choice and usage for intraLATA long-distance in the US. Utilizing a generalized Tobit model, the price responsiveness of usage and carrier choice are estimated. The results are generally consistent with expectations both in terms of theory and of practical experience in the industry.     

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.     

网络环境下企业内部控制探讨

网络技术和经济促进了企业控制环境的变革、会计系统体系结构重组及企业内部控制程序的完善 ,同时也增加了安全控制的难度。相应的网络安全策略     

峰荷需求、资本配置效率与中国网络型基础产业投融资机制改革——对阿弗奇-约翰逊模型的一个扩展

阿弗奇—约翰逊模型(A—J模型)表明规制对象具有过度使用资本倾向,相应的实证检验中同时存在肯定和否定的结果,但基本的A—J模型、已有扩展和实证检验都忽略了受规制行业的峰荷需求特征。本文从基本的A—J模型出发,假定生产要素单位使用成本与规制机构所认可的单位核算成本不同,考察了峰荷需求特征下受规制网络型基础产业的投资行为,提供了资本配置效率的衡量标准。本文的基本结论在于,峰荷需求条件下受规制企业不一定投资过多,这也解释了为何A—J效应的实证检验存在相互矛盾的结果。     

中国寿险需求实证分析

本文对国内外的寿险需求分析研究进行了简单综述，在此基础上抽取全目30省市1998—2003年的数据．采取面板数据模型就收入、通货膨胀、社会保障、银行利率、死亡率等寿险需求影响因素与保费收入相关性作了Granger因果性检验分析。     

论服务性企业的内部信息流管理——从服务质量管理角度

不同类型的服务性企业，其产品的种类、顾客化程度、顾客参与性程度和劳动密集程度等特征各有不同，但由于服务产品的某些共同特性，形成了企业内部信息流管理的共同规律。也决定了服务性企业内部信息流管理的必然性和特殊性。企业的信息流管理是企业加强顾客和企业之间以及企业各部门之间沟通的重要基石。掌握信息流管理原理，应对顾客意见，保持信息的容易获得性、流转顺畅性、对改变的自适应性和信息反馈机制，对不断提高服务质量、提高顾客满意度至关重要。     

Research on principal-agency of stockholders and managers under asymmetric information condition

In modem enterprises, a separation of the right of ownership and management results in asymmetric information problems between stockholders and managers. In conditions of principal-agency relationship, the game behaviors between principle and agency within enterprises are impacted by asymmetric information. This study discusses the game behaviors between stockholders and managers by using information economic theories from the perspective of asymmetric information. Based on the model of the principal-agency relationship between stockholders and managers, our research uses quantitative analysis to reveal how to achieve maximum profit expected of stockholders through an incomplete contract, under asymmetric information condition.     

会计基本准则中会计信息质量要求逻辑的思考

财政部于2006年2月15日正式发布了企业会计准则体系，并规定自2007年1月1日起在上市公司范围内施行。本次会计准则体系制定的主要思路之一是参照国际财务报告准则，并充分考虑中国现阶段的国情，以使按企业会计准则体系编制的财务报表能够更加真实、公允地反映企业的价值。基于这一出发点，企业会计准则体系在规范会计信息质量要求上实现了诸多突破。本文拟从基本会计准则的理论指导层面。分析这些突破的东龙去脉。并提出了封基本准则会计信息质量要求的不足和改进意见。     

信息化与贸易新发展

从生产力发展与技术进步的视角来观察，人类社会经历了三次大的革命，即：农业革命、工业革命、信息革命。其中，信息革命是迄今为止最伟大的一次革命。信息化的进程对人类社会的发展产生了巨大的影响。信息化引起和带动了贸易的革命性变化，推动了贸易纳新发展。贸易秩序将走向法制化、明化。