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1.
Using a sample of Australian Multi-sector trusts we examine selectivity and market timing performance and extend the analysis to include the relatively new measure of volatility timing. This is of particular relevance to our data set, as high levels of volatility persistence are prevalent in Australia. In addition we consider the stability, asymmetry and seasonality of the various performance and risk measures. A survivorship adjustment procedure is also employed in order to assess the impact of survivorship on selectivity, market timing and volatility timing performance. 相似文献
2.
In the present paper a comprehensive assessment of existing mutual fund performance models is presented. Using a survivor‐bias free database of all US mutual funds, we explore the added value of introducing extra variables such as size, book‐to‐market, momentum and a bond index. In addition to that we evaluate the use of introducing time‐variation in betas and alpha. The search for the most suitable model to measure mutual fund performance will be addressed along two lines. First, we are interested in the statistical significance of adding more factors to the single factor model. Second, we focus on the economic importance of more elaborate model specifications. The added value of the present study lies both in the step‐wise process of identifying relevant factors, and the use of a rich US mutual fund database that was recently released by the Center for Research in Security Prices. 相似文献
3.
Summary. Finding solutions to the Bellman equation often relies on restrictive boundedness assumptions. In this paper we develop a
method of proof that allows to dispense with the assumption that returns are bounded from above. In applications our assumptions
only imply that long run average (expected) growth is sufficiently discounted, in sharp contrast with classical assumptions
either absolutely bounding growth or bounding each period (instead of long run) maximum (instead of average) growth. We discuss
our work in relation to the literature and provide several examples.
Received: July 26, 2000; revised version: July 10, 2002
RID="*"
ID="*" I am specially grateful to Cuong Le Van and to anonymous referee for detecting an error in a previous version of this
paper and for suggestions that sensibly improved the paper. Comments and suggestions are also acknowledged to Michele Boldrin,
Raouf Boucekkine, Fabrice Collard, Tim Kehoe, Omar Licandro, and Luis Puch. I am also indebted to participants to the III
Summer School on Economic Theory held at the Universidade de Vigo, the Macroeconomics Workshop at the Universitat Autò}noma
de Barcelona, and the Econometrics Seminar at Tilburg University. Financial support from the Belgian government, under project
PAI P4/01, at the IRES-UCL, from a European Marie Curie fellowship, Grant HPMF-CT-1999-00410, at the CEPREMAP, and from IVIE
and Spanish Ministerio de Ciencia y Tecnología and FEDER, under project BEC2001-0535, at the Universidad de Alicante, is gratefully
acknowledged. 相似文献
4.
We assess the quantitative importance of reclassification risk in the US health insurance market. Reclassification risk arises because the health conditions of individuals evolve over time, while a typical health insurance contract only lasts for one year. Thus, a change in the health status can lead to a significant change in the health insurance premium. We measure welfare gains from introducing explicit insurance against this risk in the form of guaranteed renewable health insurance contracts. We find that in the current institutional environment individuals are well-sheltered against reclassification risk and they only moderately gain from having access to these contracts. More specifically, we show that employer-sponsored health insurance and public means-tested transfers play an important role in providing implicit insurance against reclassification risk. If these institutions are removed, the average welfare gains from having access to guaranteed renewable contracts exceed 4% of the annual consumption. 相似文献
5.
本文从发展性、战略性、新兴性和导向性四个维度分析战略性新兴产业的特征,构建战略性新兴产业产能利用状况的评价指标体系,并在评价综合指数的基础上构建产能过剩预警体系。测算中国光伏产业产能利用评价指标权重及综合指数,并利用“前端”指标对其产能过剩预警模型进行实证检验和分析。研究结果显示,光伏产业上游环节新兴性特征对产能利用的影响程度最大,战略性特征影响程度最小;产能过剩预警模型预测准确率为92.9%,预测效果较好。为化解和防止战略性新兴产业的产能过剩,需要鼓励产学研紧密合作,完善新产品市场配套设施,建立信息发布及产能监测预警机制,提高政府补贴使用效率,正确引导社会资金投向。 相似文献
6.
采用“DEA方法”评价我国上市军工企业结构优化度,通过我国各军工产业结构优化效率之间的对比,探究我国军工产业结构现有的问题,进而提出新时期、新常态下,我国军工产业结构升级的对策。最后,就军民融合背景下我国军工企业转型升级问题提出实践性指导。 相似文献
7.
文章通过对科学发展人才观的学习和理解,及对广西桂冠开投电力有限责任公司(以下称桂开公司)现实情况的调研,结合水电企业人力资源发展趋势和本企业的实际需求,提出了着力推进人才评价和教育培训工作的目标规划、长效机制、载体等建设性意见。 相似文献
8.
文章根据研究背景和经验理论提出假设,然后利用交互分析,找出居家养老参与度的影响因素,把被调查群体按不同年龄段和城乡分布分类,检验各个影响因素的显著性和稳定性,最后在总结研究结论的基础上,提出相应的建议与思考。 相似文献
9.
10.
地方政府公共投资与区域经济增长的差异性分析 总被引:3,自引:0,他引:3
文章采用全国31个省、自治区和直辖市1995~2008年的面板数据,构建动态面板数据模型,考察了地方政府公共投资对区域经济增长的影响。研究表明,1995年以来我国地方政府公共投资总体上推动了区域经济增长,但不同公共投资项目的拉动效应在区域间存在着较大差异。 相似文献