WTO框架下中国服务贸易发展的初步构想

加入WTO五年，中国服务贸易迅速发展，但与世界服务贸易发展相比，仍存在很大差距。本文在简要介绍我国服务贸易发展现状的基础上，对我国服务贸易的竞争力进行分析，揭示了我国服务贸易发展过程中存在的问题，并构想解决的对策。     

Default Premiums in Commodity Markets: Theory and Evidence

We model the effect of nonperformance risk on forward and futures pricing and look for evidence of nonperformance risk in precious metals futures prices from the “Hunt Brothers”episode. Changes in default premiums are measured and related to the sequence of events in the metals markets during this period. Results suggest first that ex ante costs of nonperformance can be a significant, priced factor in commodity markets and second that the arrival of new information is often associated with changes in these costs. The evidence has implications for both theoretical and empirical research on commodity markets.     

我国房产税试点效果评析与房产税作用探究

目前我国房产税在持有环节的征收处于试点阶段，其推进和改革仍有很多争议。文章在总结国际上发达国家房产税征收及我国房产持有环节税收试点情况的基础上，从三方面分别探讨了在我国房价高启的背景下开征持有环节的房地产税的作用。但是这些作用还不能全面准确地涵盖我国应征收房地产税的所有层面，由此提出了适合我国国情的差别化房地产税收政策的构建思路。     

高分辨率铁尾矿遥感光谱特征分析与信息提取

遥感监测尾矿是矿山调查和监管的科学方法,也是地理国情监测的基础内容。研究了铁尾矿遥感影像解译标志和光谱特征,建立铁尾矿遥感信息的提取技术流程。利用尾矿光谱特征与纹理结构的特点,构建了铁尾矿遥感增强处理的RTI数学模型。并以唐山地区的铁尾矿及固体废弃物作为研究区,分析了模型的影响因子和有效性。为尾矿资源的自动监测和目标提取提供了新的处理手段。     

对我国开展矿产资源综合区划相关问题的思考

开展矿产资源综合区划是落实国家战略、保障我国资源安全的必然要求,同时也是矿产资源区划研究的重要趋势。在阐述开展矿产资源综合区划必要性和可行性的基础上,探讨了对矿产资源综合区划概念、内涵、特点、区划体系,以及划分方法与指标体系设计等方面的思考认识,以期为我国矿产资源综合区划的实证研究提供参考。     

Trade Union Influence on Human Resource Management Practices

This paper examines the influence of unions on 37 human resource management practices, ranging from hiring policies to promotion practices. The logistic regression results show that unionization is positively associated with a more formal approach to human resource management. There is, however, a shift from performance-based payment systems and performance appraisal (P.A.) functions in unionized settings. The results also indicate that union firms are more selective of new hires by adopting a formal probationary period for new employees. Last, the estimates suggest that the impact of unions on training programs varies with the nature of the programs.     

Specialization, Information, and Growth: A Sequential Equilibrium Analysis

Pricing costs and information problems are introduced into a framework with consumer-producers, economies of specialization, and transaction costs, to predict the endogenous and concurrent evolution of the division of labor and of information concerning economic organization acquired by society. Concurrent evolution generates endogenous growth based on the tradeoff between gains from information about the efficient pattern of the division of labor—which can be acquired via experiments with various patterns—and experimentation costs, which relate to the costs of discovering prices. The concept of Walras sequential equilibrium is developed to analyze the social learning process which is characterized by uncertainties in the direction of the evolution and by a certain trend of the evolutionary process.