在高校学生管理工作中引入激励机制

激励是企业管理者提高员工积极性的有效手段。高校学生管理者也应该掌握一些激励理论并将其应用 于学生管理的实践中,提高学生管理工作的水平。     

码分体制多站交会测量中的电平效应分析

本文对测量站外测的码分多址，多站共作应答机测距方式中的远近电平效应问题，结合靶场的实际使用情况进行了具体分析。     

Investing for the Long-run in European Real Estate

We calculate optimal portfolio choices for a long-horizon, risk-averse investor who diversifies among European stocks, bonds, real estate, and cash, when excess asset returns are predictable. Simulations are performed for scenarios involving different risk aversion levels, horizons, and statistical models capturing predictability in risk premia. Importantly, under one of the scenarios, the investor takes into account the parameter uncertainty implied by the use of estimated coefficients to characterize predictability. We find that real estate ought to play a significant role in optimal portfolio choices, with weights between 12 and 44%. Under plausible assumptions, the welfare costs of either ignoring predictability or restricting portfolio choices to traditional financial assets only are found to be in the order of 150–300 basis points per year. These results are robust to changes in the benchmarks and in the statistical framework.      

Country and currency diversification of bond investments: do they really make sense for Swiss investors?

The inclusion of hedged or unhedged foreign currency bonds within a strategic asset allocation is a crucial decision which should be analyzed carefully. The goal of this paper is to provide a contribution to this analysis by focusing particularly on the time horizon of the investment. Results are analyzed from the perspective of a Swiss investor. We find that over the last 21 years, investing in bonds denominated in Swiss Francs has been clearly less efficient in terms of risk-adjusted returns than investing in a hedged global bond portfolio. For short-term investors, we find robust evidence against the hypothesis of investing in unhedged foreign currency bonds. The picture changes dramatically, however, when we consider an investment horizon of 6 years and the normal case of balanced portfolios including also equities and domestic bonds. In this case, the optimal strategy for the period we analyzed would have been to hedge only the exposure to US dollar bonds.      

Optimal investments for risk- and ambiguity-averse preferences: a duality approach

Ambiguity, also called Knightian or model uncertainty, is a key feature in financial modeling. A recent paper by Maccheroni et al. (preprint, 2004) characterizes investor preferences under aversion against both risk and ambiguity. Their result shows that these preferences can be numerically represented in terms of convex risk measures. In this paper we study the corresponding problem of optimal investment over a given time horizon, using a duality approach and building upon the results by Kramkov and Schachermayer (Ann. Appl. Probab. 9, 904–950, 1999; Ann. Appl. Probab. 13, 1504–1516, 2003). Supported by Deutsche Forschungsgemeinschaft through the SFB 649 “Economic Risk”.     

知识产权保护与经济水平对技术创新的作用机制研究

基于2012—2017年我国省级面板数据,将区域层面的工业企业创新过程划分为技术研发和技术成果转化两阶段,以地区规模以上工业企业为研究对象,采用混合OLS回归、固定效应模型和系统广义矩估计方法检验知识产权保护与经济水平对工业企业两阶段创新的作用。结果发现：①知识产权保护和经济水平对区域工业企业技术研发和技术成果转化两阶段均有显著促进作用;②在工业企业技术研发和技术成果转化两阶段均存在知识产权保护与经济水平的交互作用,这一交互作用削弱了两者对工业企业技术创新过程的促进作用;③知识产权保护、经济水平对工业企业技术研发阶段的影响强度大于技术成果转化阶段;④基于我国各地区当前经济水平,大部分区域仍须加强知识产权保护以进一步促进区域工业企业技术创新。     

企业产权结构和隶属层级对生产率的影响

本文基于企业调研数据,利用数据包络分析法测算出企业的技术效率、生产率变化及其构成,并运用计量模型实证研究了企业产权结构和隶属层级对技术效率和生产率变化的影响。研究表明,国有企业的技术效率最低,但生产率增长较快,且生产率增长主要来源于效率改善;中央主管企业作为一类特殊的国有垄断企业,不仅技术效率低,而且生产率无显著增长。     

服务贸易出口技术复杂度与经济增长——基于跨国面板数据的实证分析

本文通过构建和计算服务贸易出口技术复杂度指数,利用1997-2009年间的跨国面板数据,对服务贸易出口技术复杂度与经济增长的关系进行了经验分析.结论表明,服务贸易出口技术复杂度对经济增长有着显著的积极影响,即,服务贸易出口技术复杂度越高,对经济增长的促进作用就越明显.在中国服务贸易发展相对滞后以及外贸发展方式亟待转型升级的背景下,提倡大力发展服务贸易不应单纯追求规模的扩张,更应注重服务贸易出口技术复杂度的提升,如此,才能更为有效地推进中国外贸发展方式转型,以及更为有效地促进中国经济又好又快地发展.     

基于聚类分析的我国各省份旅游业发展水平研究

本文利用统计软件SPSS11.0对我国31个省份进行主成分分析和聚类分析,通过各类的差异比较,力图找出各个省份在发展旅游业方面的优势和缺陷,以期对各省的旅游决策工作提出建议。     

银行最优化扩张规模及实证分析

本文运用经济学中的供需平衡和消费效用理论,构建“最优化银行扩张规模”模型,并用该模型对中国大陆地区、美国、中国香港地区的数据进行比较及实证分析。研究结果表明,银行扩张会直接促进经济增长,但银行扩张到一定规模时对经济增长会产生负效应;目前我国总体上尚未存在银行业过度发展的情况,但东西部地区的发展已存在差异。因此,在引导商业银行进行业务扩张时,要注意东西部地区差异,合理有序地促进银行业的繁荣发展。