养老保险制度转轨的经济学分析

养老保险制度从现收现付制到基金制的转轨是当今社会保障制度改革的潮流。从经济学的角度看 ,必须满足条件 :市场实际利率大于消费贴现率 ,消费贴现率大于人口增长率与劳动生产率增长率之和 ,并且都大于零 ,养老保险的转轨才能提高效率。当前 ,我国养老保险制度转轨的时机尚未成熟 ,不宜实行完全基金制。     

关于俄罗斯产出下降的一个解释

转轨经济中的结构调整既包括正常经济发展过程中的结构调整,又包括转轨本身所引致的结构调整。就转轨本身所引致的结构调整来说,又包含产业结构的调整和所有制结构的调整两重含义。就正常经济发展过程中的结构调整来说,俄罗斯面对的是成熟经济的结构调整的困难问题。就转轨本身所引致的结构调整来说,俄罗斯不具备增量调整的条件,无法克服转轨经济中的“两难困境”。俄罗斯经济绩效差具有事前决定的特点,是事前决定了的。     

辊碾磨状态监测与故障诊断系统的研究与开发

介绍了研究与开发辊碾磨状态监测与故障诊断系统的目的的意义、国内外研究的现状以及本研究的主要内容。     

油田设备润滑管理的现状与思考

分析了油田设备润滑管理现状，针对油田设备润滑管理现状及存在的问题，对油田设备润滑管理和油田企业主要设备用油进行了尝试，并对有关问题进行了较为深入的探讨，结合油田实际，认为在主要设备的润滑管理等方面还需进一步改进和提高。     

我国天然气专业技术标准的现状与设想

概括了我国天然气专业技术标准发展的现状，并通过与国际标准和国外先进标准比较，以及针对现场分析中存在的问题，提出了应采用完善《天然气专业标准体系表》，加快与国际接轨和“采标”的速度等办法来推动我国天然气专业标准化工作的发展。     

Another look at long memory in common stock returns

We apply the modified rescaled range test to the return series of 1,952 common stocks. The results indicate that long memory is not a widespread characteristic of these stocks. But logit models of the event of a test rejection reveal that rejections are linked to firms with large risk-adjusted average returns. The maximal moment of a return distribution is also found to influence the event of a rejection, but not in a way suggestive of moment-condition failure. Evidence suggestive of survivorship bias is also uncovered. We conclude that there is some evidence consistent with persistent long memory in the returns of a small proportion of stocks.     

中国企业技术创新成功的环境条件分析

企业技术创新成功的环境条件分为四个不同的层次和五个不同的维度。由于我国企业环境建设不系统,因此我国企业没有成为技术创新的主体。正确认识我国企业技术创新环境问题是十分必要的。     

The importance of firing costs and the Hosios condition in search models with endogenous job destruction

We construct a DSGE search model with endogenous job destruction, incorporating wage rigidities, firing costs and unemployment benefit. We investigate the most important factors in matching the model’s cyclical properties with empirical data, particularly those of job creation rates (JCR) and job destruction rates (JDR). Firing costs assist significantly in explaining the procyclicality of JCR, the negative correlation of JCR and JDR, and the persistence of vacancies. They also decrease the counter-cyclicality of job turnover. We also postulate that the Hosios condition helps explain the negative correlation of JCR and JDR and vacancies’ persistence. Varying wage rigidities and unemployment income, however, do not improve the results.     

基于信息系统体系下的军人健康度评估问题研究

基于信息系统体系下的现代战争要求作战人员既要有强健的体魄,还要有良好的心理素质。只有身心健康,才能培养健全的人格,强化心智活动,矫正不良心理,因此,提高信息化条件下军人身心健康水平,是军队信息化建设的一项重要任务,也是考察军队政治工作质量的重要指标。     

Regime changes and fiscal sustainability in Kenya

Kenya's fiscal policy landscape is characterized by primary deficit spending forcing the government to rely on debt to meet its objectives. The justification often being that as a developing economy, annual growth rates and future prospects may in the short run justify the uptake of debt to finance infrastructural development. However, given potential fiscal limits, fiscal cycles usually alternates between sustainable and unsustainable regimes and this has a bearing on long run sustainability. This study therefore sought to investigate the nature of fiscal policy regime in Kenya and the extent to which fiscal policy is sustainable in the long run taking into account periodic regime shifts. Markov switching models were used to endogenously determine fiscal policy regimes. Regime switching tests were used to test whether No-Ponzi game condition and debt stabilizing condition were met. The results established that regime switching model was suitable in explaining regime sustainable and unsustainable cycles. An investigation of fiscal policy regimes established that both sustainable and unsustainable regimes were dominant, and each lasted for an average of four years. There was evidence to imply the existence of procyclical fiscal policy in Kenya. Regime switching tests for long run sustainability suggested that the No-Ponzi game condition weakly holds in the Kenyan economy. Regime-based sensitivity analysis indicated that persistence of unsustainability regime for more than 4 years could threaten long-run fiscal sustainability.