农民工市民化难点与新型城镇化战略

刘易斯模型、托达罗模型等宏观经济学理论能够解释中国农民工向城市流动的动力问题,但无法揭示我国农民工市民化的障碍根源问题.城乡之间、区域之间的劳动生产率差距和收入差距,引导农村人口向城市流动,但同时也给农民工市民化造成障碍,国民经济中劳动收入占比的不断下降不利于农民工获取市民化的个人成本.因此在以市民化为核心的新型城镇化进程中,要把握城市群战略、产业转型战略、土地流转管理机制等关键规划的实施,促进和推动农民工顺利市民化.     

Using long-run consumption-return correlations to test asset pricing models

This paper examines a new set of implications for existing asset pricing models regarding the correlation between returns and consumption growth over both the short run and the long run. The findings suggest that external habit formation models face a challenge in producing two robust facts in aggregate data, namely, that stock market returns lead consumption growth, and that the correlation between returns and consumption growth is higher at low frequencies. To reconcile these facts with a consumption-based model, I demonstrate the need for focusing on models that contain a forward-looking consumption component, i.e., models that allow for both trend and cyclical fluctuations in consumption, and that link returns to cyclical fluctuations in consumption. Long-run risk models provide examples of models that contain this consumption component.     

沥青路面平整度影响成因及预防

本文就沥青路面的平整度影响因素进行简单探讨,并从施工控制方面提出相应的措施.     

“节约规律”认识的新维度与实现方式

面对时代演进,需要用经济与自然相统一的视阈认识节约规律,它是大自然对人类社会配置和利用资源的约束与规导,以最小的综合投入获取最大的综合效益(生态、经济、社会、健康、安全)。对它认识的深化经过三个历史阶段,其内涵、外延展现新的维度,赋予节约质的规定性,提供全新的经济实现方式。在我国实现经济转型中,应当认真遵循这条马克思称谓的首要规律,倡导用自然辩证法思维提升改造经济学,在理论上廓清西方节约观的偏狭性、肤浅性,树立大节约观,建立高效节约机制。     

The effectiveness of quantitative easing: new evidence on private investment

This paper examines the effect of Federal Reserve’s large-scale purchases of securities on private investment. We find tentative evidence that quantitative easing (QE) stimulated the level of aggregate investment through the interest rate channel by narrowing corporate bond spread. In particular, the Fed’s purchases of mortgage-backed securities were found to have a statistically significant effect on aggregate private investment. Moreover, using a GARCH model, we find that QE has led to a reduction in the volatility of private investment. This finding remains robust with a QE dummy variable as an alternative measure of the unconventional monetary policy. The study also indicates how different aspects of QE influence private investment and its volatility.     

校企关系与企业R & D投入研究

校企关系被看作是企业与高校交换创新资源的重要纽带,备受国内外学者关注,但其对企业的影响尚未得到一致结论,校企关系是否促进企业技术创新能力提升、降低企业创新投入成本有待进一步研究。以我国2009—2014 年高校上市公司为研究样本,建立回归方程模型,研究了高校和企业间关系对公司R&D投入的影响。实证研究表明,我国高校上市公司中不同属性的校企关系对企业研发投入的影响不同。其中,以高校持股比例为指征的校企关系与公司研发投入呈正相关关系,高校股权可以促进企业研发投入;以高校股东分红比例和高校从业经历高管比例为指征的校企关系与研发投入呈负相关关系,以政府补助为指征的校企关系对高校控股上市公司和非控股上市公司研发投入的影响不同。     

中国出境旅游变动趋势分析

为了把握中国作为新兴的全球旅游业重要出境客源地的发展前景和变动趋势，本文从出境旅游市场发展规模、决策类型和价格影响、目的地偏好、旅游方式、消费能力等方面作了详细的分析，并提出了相应建议。     

因势利导推进西部高校科研管理机制的创新

科研是提高大学发展水平最直接和最有效的推进器。对条件相对落后的西部高校而言，科研管理部门要用良好的开放心态，创立优秀的科研工作平台，吸引四方人才，激发科研活力。对科研人员要“不求所有，但求所用”，通过规范管理制度、创新管理思维，关注相关领域科学研究全局，因势利导，顺水推舟，促进本校科研水平不断攀上新台阶。     

高炉灰中SiO_2、CaO、MgO含量的测定

本文简要介绍高炉灰中Si02,CaO,MgO的测定,此方法其准确性、重现性、稳定性均可满足日常分析的需求。