养老基金筹集模式的实证分析

当前的养老制度改革是关注的焦点。本文首先将从介绍现存的筹集模式入手,试图换个角度来思考在人口老龄化背景下的我国养老金基金制度,实证分析模式选择对于缴费率等的影响,并基于此,讨论未来改革的方向。     

Do homeowners achieve more household wealth in the long run?

Despite the public’s faith in homeownership as a vehicle for wealth creation, there are surprisingly few empirical studies of the independent impact of homeownership and its duration on household wealth accumulation. This paper provides the first empirical evidence that homeownership, after controlling for other drivers of wealth accumulation, is positively and significantly associated with wealth accumulation over time. Using the Panel Survey of Income Dynamics, it examines the influence of housing tenure choices between 1989 and 2001 on household net wealth levels in 2001 after controlling for initial wealth in 1989, location, income, education, and other family and personal characteristics that might influence the rate of wealth accumulation. Importantly, the models used also control for the tendency of households to accumulate wealth between 1984 and 1989 (five years prior to the studied period). This approach is used to address the possibility that an unobserved variable—the propensity to save or accumulate wealth—may be associated with both the probability and duration of homeownership and the rate of wealth accumulation. All else equal, those who owned homes and owned for longer periods of time had significantly higher household net wealth by 2001. These results are compelling because house price appreciation over the period was near its long-run average while stock gains were above and real rent increases below their long-run averages. Hence, the findings are suggestive of a positive influence of ownership over long periods on net wealth, even during a period when alternative investments produced higher than normal returns and rents grew slowly. This is especially important because the overwhelmingly majority of households do not sell their homes shortly after buying them. In our sample, those who became owners typically owned for 7 years. Furthermore, most households that bought during a period of declining real home values in the early 1990s continued to own their homes for at least eight years and came out well ahead of those who did not own.     

市场新进入者的星级酒店战略定位——以丽江国际大酒店为例

本通过对即将开业的丽江国际大酒店核心竞争力的分析，探讨高星级酒店的战略定位问题，提出了丽江国际大酒店的经营战略和途径。将资源配置效能、运行机制、创新能力和企业化有机融合，系统培育酒店核心竞争力，使酒店在有限的条件下，集中有限的资源和能力，实现局部最优。     

CEV模型的单位根检验研究

CEV模型（Constant Elasticity of Variance Model）作为常用的利率模型，在实证分析中得到了广泛运用，但是其单位根检验一直被忽略或者被默认可以使用迪基一富勒检验。本文首次运用Box—Cox变换的技巧，针对CEV模型的单位根检验问题，找到了合适的统计量并且证明其渐进分布存在，然后通过蒙特卡罗方法求出了该统计量的分布表。得到了在大样本的情形下可以沿用迪基一富勒检验，但在小样本的情形下与迪基一富勒检验有所偏差的结论。     

多元化与公司价值文献综述

行业多元化和地理多元化对公司价值具有不同的影响，即行业多元化对公司价值有负向影响，地理多元化则有利于公司价值的增加。多元化的这两个方面对公司价值有交互影响。多元化折价的原因主要有公司多元化本身造成公司价值减少；折价是由计量引起的。总结国外学有关多元化对公司价值影响的研究成果，以期对多元化领域的进一步研究提供一定的线索。     

拓宽扶贫思路,构建和谐社会

改革开放以来,我国扶贫工作成绩显著.全国贫困人口已从30%降至4%,但目前无论相对贫困还是绝对贫困,情况仍然十分严重.绝对贫困方面,全国农村低于国家规定的贫困线(人均年收入667元人民币)的人口有2 600多万,其温饱问题还未完全解决;全国城镇低于低保线(人均月收入159元人民币)的人口有2 200多万,生活状况仍十分艰难.     

推挽式激光导引AGV设计

介绍了推挽式激光导引无人车设计的主要技术指标，结构特点及各主要系统的功能与作用。     

论供应链管理环境下的物流管理

供应链管理是随着全球制造、全球化经营趋势的迅猛发展孕育而生的一种新的物流管理模式和思想，是物流管理的一场革命。与此同时，物流管理在此大环境下，又呈现出许多新的特点和规律。本文对此问题从供应链管理的科学内涵、供应链管理与物流管理的内在关系以及供应链管理下的物流管理三个方面进行了论述。     

完善城市整体功能是旧城改造的方向

城市的更新、改造是社会发展的必然 ,如何通过现状调查、分析、研讨 ,找出城市建设的症结 ,使城市趋于完美是城市建设者的历史使命。但现实中 ,片面追求经济效益 ,发旧城改造之财 ,只能使城市变成“崭新的旧城” ,只有按城市发展的固有规律去完善城市的整体功能才是旧城改造的发展方向。     

建立我国多层次资本市场体系的若干关键问题

我国资本市场发展的目标模式是建立多层次资本市场体系。为了实现这一目标,要进一步规范和发展主板市场,坚持市场化的改革取向,积极稳妥地解决主板市场上的结构性非均衡;在搞好中小企业板的基础上分步骤推进创业板建设;完善股份代办市场,实施功能转型,使之转变为真正的三板市场。