脱硫石膏制品体积稳定性试验研究

本试验对比了不同组分的石膏试件在升温、降温及干湿循环过程中的体积变形(以伸缩率计),分析了温度、湿度对石膏制品体积稳定性的影响.结果表明,脱硫石膏制品的伸缩率较小,在0.1‰～0.2‰之间,但随环境温度的改变体积变化较大,温度变形系数在1.5×10-5/℃以上.     

Estimating transport costs and trade barriers in China: Direct evidence from Chinese agricultural traders

Using a unique survey data on agricultural traders in China in 2004, this study provides direct evidence on the significance of inter-regional trade barriers and their key components. Our major findings are as follows. (1) The trade barriers within China are fairly small, accounting for about 20% of trade value. (2) Transport and non-transport costs respectively contribute 42% and 58% to the trade barriers. (3) Labor and transport-related taxes are the two largest proportions of total transport costs, and respectively account for 35% and 30%. (4) Artificial trade barriers created by the government are not sizable as we perceived. (5) Road quality is crucial for reducing transport costs within China: increasing transport speed by 1 km per hour, the total transport costs for Chinese agricultural traders would decrease by 0.6%, mainly due to improved fuel-burning efficiency and reduced labor requirement.     

资本市场投资回报率与我国养老金体系改革

理论上，投资回报率的高低是我国养老金体系转轨能否成功的关键。本文指出，我国建立基金制养老金体系面临极为特殊的背景——高工资增长率和低投资回报率。基于这个背景，本文认为现阶段进行体制转轨的时机还不成熟，当前需要大力提高我国养老基金的投资回报率或者为提高投资回报率创造条件。本文最后提出了关于提高我国养老基金投资回报率的几点建议。     

山城旅游形象策划设计研究——以湖北省恩施市为例

本文阐述了山城旅游形象策划设计的现实意义,着重强调了城市旅游形象与城市形象,城市建设一体化三者合力作用对旅游地旅游形象的重要影响。通过对干预恩施市旅游形象要素的分析,运用旅游产品形象设计的相关理论与方法,为建构恩施市的整体旅游形象,打造恩施市的旅游品牌提出了策略建议。     

提高德育效能,促进持续发展——职业学校德育工作的新视角

社会经济的发展带动产业结构调整,技术的更新换代不断加速,社会对于职业技术人才的要求也逐步提高。职业学校如何围绕学生的专业技能成长和职业道德素质提高,开展有效的德育教育活动,本文从当前教育体制下的职业学校的实际情况出发,结合新时期德育模式,探讨职业学校德育工作实施的几个步骤,提出相应的策略和方法。     

河南农村受众广告接触行为对其消费观念的影响分析

本文以豫南C乡的农村受众为研究对象展开问卷调查，主要考察了农村受众广告接触频度、接触时间、种类偏好及广告媒介信任度对其消费观念的影响。研究发现，农村受众的广告媒介接触行为影响其消费观念，但具体到广告媒介接触的指标不同则影响不同，其中农村受众广告媒介接触时间压种类偏好显著影响其消费观念。     

Time-consistent taxation in a dynastic family model with human and physical capital and a balanced government budget

Abstract .  This paper analyzes optimal, time consistent taxation in a dynastic family model with human and physical capital and with a balanced government budget. When tax revenue is used for publicly provided consumption or lump-sum transfers, leisure would be higher than its social optimum. Pareto optimal taxation requires taxing capital income more heavily than labour income and subsidizing investment at the same rate of the tax. Also, it requires either subsidizing labour at the same rate as a consumption tax or subsidizing consumption at the same rate as a labour income tax, and hence it is not a practical guide to policy. Further, a consumption tax, or equivalently a uniform income tax with investment subsidies at the same rate, can be improved on by taxing capital income more heavily than labour income.     

日本纺织产业转型研究：基于政府的视角

日本政府针时纺织产业衰退采取了短期和长期相互结合的政策。政策的实施维护了日本社会秩序和政治局面的稳定，实现了产业结构合理化和高级化，而且在规模缩减的情况下，纺织产业重新焕发出活力。日本政府促进纺织产业转型的成功经验给予我国重要启示。     

“奥尔森困境”与我国农村公路供给

农村公路是农村地区最主要的甚至是某些地区唯一的运输通道,是支撑农业和农民发展的必要力量,对促进农村地区经济和社会发展具有重要的推动作用,文章在分析我国农村公路供给现状的基础上,认为我国农村公路供给存在"奥尔森困境",即农村居民认为修建公路会使总体福利增加,但又不愿付出成本,不愿为增进总体福利采取集体行动,在对这一集体行动的逻辑进行分析之后,提出了相应的对策和建议。     

我国地区产业结构趋同及其发展对策研究

产业结构趋同是制约我国经济发展的重要因素之一。本文阐述了地区间产业结构趋同的现状及其对我国国民经济发展的不良影响,剖析了形成我国地区间产业结构趋同的主要原因,即市场经济体制和行政管理体制的双重体制缺陷。最后结合我国当前的实际情况并针对产业结构趋同成因提出了解决问题的办法。