浅谈新形势下建筑工程合同管理存在的主要问题和解决途径

结合《工程量清单计价规范》、《建设工程施工合同示范文本》和合同管理的实际情况,分析目前在工程量清单计价模式下合同管理存在的主要问题,并提出相应的对策和解决途径     

Repeated Dichotomous Choice Formats for Elicitation of Willingness to Pay: Simultaneous Estimation and Anchoring Effect

Repeated dichotomous choice contingent valuation data are generated from responses to a succession of binary questions regarding alternative prices for an environmental good. In this paper we propose a simultaneous equation model that allows for endogeneity and error correlation across the responses at each stage of the bidding process. The model allows us to study the evolution of anchoring effects after the second dichotomous choice question. Estimation involves the Bayesian techniques of Gibbs sampling and data augmentation, and the application focuses on the preservation value of a natural area. The results for a data set involving up to four successive dichotomous choice questions show that restricted multiple-bounded models are rejected by the data with the general model. In addition, willingness to pay tends to stabilize after the second stage in the elicitation process for the general unrestricted model. When taking anchoring effects into consideration, it is revealed that individuals’ responses in the latter stages are influenced by the sequence of bid prices offered in earlier questions. Nevertheless, they do not have a significant effect on welfare estimates.      

Exposure order effects and advertising competition

This paper applies the theories of exposure order effects, developed in the psychology literature, to an industrial organization model to explore their role in advertising competition. There are two firms and infinitely many identical consumers. The firms produce a homogeneous product and distribute their brands through a common retailer. Consumers randomly arrive at the retailer and buy their most preferred brands. The order in which a consumer sees the advertising messages affects his brand preferences. Under the primacy effect the consumer prefers the brand he first saw advertised, under the recency—the last encountered brand. The equilibrium of the advertising game is characterized separately under the primacy and the recency effects. In the first setting all consumers are initially unaware of the product existence. The equilibrium advertising intensities, remarkably, do not depend on the type of exposure order effect. In the other two settings some consumers have already formed their brand preferences. The primacy and the recency effects give rise to different equilibrium outcomes.     

基于LMDI的我国能耗增长总量分解

本文运用迪氏对数指标分解法（LMDI）对我国6个行业在1985～2005年的能耗增长进行研究,将总能耗增长量分解为3个部分：生产效应,结构效应和强度效应。研究结果表明,我国过去20多年来能耗消费增长的主要动因是生产规模的扩大和经济结构的调整,而我国能耗强度的降低则大大地延缓了能耗总量的增长。本文最后根据研究结果提出了相关的政策建议。     

提升高职院校物流实训教学效果的方法研究

物流实训课程是培养高职院校物流专业学生的实际操作能力和适应社会能力的关键课程,如何提高本课程的教学效果,是学校和企业都十分关注的问题。基于物流学科的特点提出三个方法来改进物流实训课教学效果,即采用行为导向的教学模式,将实际物流岗位技能和课堂教学内容相连接;充分利用各种教学辅助工具,实现应用现代物流教学资源与自制教具相结合;参加物流职业竞赛,以赛促学,激发学生学习兴趣,保持长期学习热情。     

中国商品期货市场的假日效应研究——基于收益和波动的视角

为研究中国商品期货市场假日效应的存在性及其特征,本文从收益和波动出发,在构建学生分布随机波动模型的基础上采用贝叶斯MCMC模拟技术对中国铜、铝、橡胶、大豆、豆粕和小麦期货市场的假日效应进行了实证分析,研究结果显示:假日前和假日后信息对商品期货交易收益及其波动均具有显著的影响,对不同交易品种而言,其影响方向及影响程度均存在一定差异;更具体地,对各类假日分别进行分析发现,元旦、春节、劳动节和国庆节的假日前和假日后信息对商品期货收益及其波动均具有显著的影响,且比分类之前假日前和假日后信息的影响能力明显增强,其个性特征也更加突出。     

中英文化差异及其影响

简要评述了中英两种语言的文化差异及其影响,提出了了解和掌握文化差异的必要性。     

一项关于价格水平决定的财政理论的实证研究

本文遵循Sala的五变量VAR方法发现,在绝大部分时间里,实际利率对一个标准差的实际税收正向冲击的反应为正,这就为价格水平决定的财政理论提供了来自中国的经验证据的支持。除此之外,与很多学者一样,本文还发现了实际税收冲击的非凯恩斯效应。