背诵是有效掌握俄语语法的良策

本文强调背诵在俄语语法熟练过程中的作用,使俄语专业学生通过背诵掌握枯燥的俄语语法规则,并且灵活地掌握俄语语言的内在表达规律,早日形成俄语学习的坚实的基本技能。     

Optimal investment strategies in an international economy with stochastic interest rates

We investigate how investors should optimally choose to invest in a dynamically complete international market. We find closed-form solutions for the optimal investment strategy and for the wealth loss an investor suffers from not investing internationally. Theoretically, we show that the gain from international investment is due to the speculative investment only, and why it is important for an investor from a large economy to invest in a small economy. In a numerical example we compare the wealth losses investors from Denmark and the U.S. suffer due to home bias.     

农户主体行为与农民土地权益保护

保护农民土地权益需要农民内力和社会外力的共同作用才能有效实现。随着工业化、城市化程度的不断加深,各地侵害农民土地权益的事件时有发生。目前我国农民自我保护意识普遍较弱,对其自身合法权益的维护产生较大负面影响,因此政府有必要从教育、法律、组织、制度等层面引导农民树立自我保护意识。     

Long memory in the volatility of China stock returns

In this paper, we empirically examine the volatility process of China's stock market returns using daily and weekly Shanghai and Shenzhen stock indices during January 1990 to August 2008. To investigate the property of the process, we used the FIGARCH (fractionally integrated GARCH) model including GARCH and IGARCH processes as special cases. Since the FIGARCH model allows fractional integration order, it can detect hyperbolically decaying volatility processes which cannot be explained by previous models with integer integration order. Our results show that the Shanghai and Shenzhen stock indices exhibit long-term dependencies. The long memory properties of the Shanghai and Shenzhen stock markets do not seem to be spuriously induced without exception.     

对现阶段中国长期护理保险产品的开发建议

卫生部调查数据显示：中国60岁以上老年人余寿中有2／3的时间带病生存，平均1／4左右的时间处于机体功能受损状态。2008年底，中国60岁以上人口总数达到1．49亿，医疗保障需求极为旺盛，然而，通过保险解决医疗费用支出的比例微乎其微。从中国现行社会保障体系的实际情况出发，结合国外长期护理领域的成熟产品以及中国老年人群的特点和护理需求，对如何做好老年人群的产品规划，促进保险产品创新，提出相应建议。     

双差数列的几个性质

讨论了双差数列与周期双差数列的通项公式以及求和公式。     

THE AGEING POPULATION: CRUNCH TIME FOR GOVERNMENT REFORMS

Current discussions about reforms to health and long‐term care miss the most important trends that should be influencing debate. With an ageing population that includes a higher proportion of people with manageable illnesses, health and care costs will rise. Reforms must ensure that existing government spending is used more efficiently and that it harnesses – rather than works against – private financing.     

The leading indicator property of the term spread and the monetary policy factors in Japan

Many studies have observed the leading indicator property of the term spread (LIPTS), which indicates that the term spread—the difference between long- and short-term interest rates—has information on future economic conditions. We examine whether this property is related to monetary policy or not by using Japanese monthly data with consideration for structural changes. Results of structural change tests show that the term spread has predictive ability for the future economic activity from 1982:4 to 1997:8. Decomposing the term spread into three parts; one is explained by past monetary policy shocks, another is explained by expected future call rates and the other is the remaining part, we find that all three parts are significantly related to the future economic growth rate. Hence, we find that the monetary policy plays an important role for the LIPTS.     

Risk Shifting through Nonfinancial Contracts: Effects on Loan Spreads and Capital Structure of Project Finance Deals

We study capital structure negotiation and cost of debt financing between sponsors and lenders using a sample of more than 1,000 project finance loans worth around US$195 billion closed between 1998 and 2003. We find that lenders: (i) rely on the network of nonfinancial contracts as a mechanism to control agency costs and project risks, (ii) are reluctant to price credit more cheaply if sponsors are involved as project counterparties in the relevant contracts, and finally (iii) do not appreciate sponsor involvement as a contractual counterparty of the special purpose vehicle when determining the level of leverage.