让实体经济和虚拟经济的耦合协调度最优

自借贷资本从商业资本和产业资本分离之日起,虚拟经济就已产生,并随着经济的发展规模逐步扩大。虚拟经济与实体经济发展平衡时,彼此促进增长;当两者发展程度不协调时,就会出现泡沫经济。在新一轮经济形势下,如何让两者的耦合协调度最优?文中对虚拟经济增殖过程进行了一定程度的揭示,并为使两者耦合协调度最优提出一点建议。     

回归诊断在统计数据异常值探测中的应用

近年来有关异常值的理论探讨一直是个热点问题,从回归模型诊断的角度对统计数据中的异常值进行探测与分析,并在基于R语言的基础上,结合具体实例,给出回归诊断在统计数据异常值探测中的应用。     

大力发展集装箱海铁联运 推动上海国际航运中心建设——以洋山港、芦潮港为例

集装箱集疏运体系结构不合理、公路比例偏高已成为制约上海国际航运中心可持续发展的因素,无论是从环境保护、节能减排的客观要求出发,还是从上海国际航运中心可持续发展的主观能动性出发,都要求集疏运体系由公路向水路与铁路转移,优化集疏运体系结构,实现上海国际航运中心的可持续发展。     

电子商务在房地产业中的应用

电子商务理论和技术在房地产业中的应用范围极其广泛,可以利用互联网和数码技术构建的电子商务系统改造传统的地产商业模式部分业务流程,将传统的地产业务与电子商务模式有机地结合起来,提高房地产企业的经济效益。     

浅谈社会团体在科普中的作用与意义——以北京农民工教育促进会科普活动的实践为例

社会团体的科普活动可以弥补政府科普工作兼顾不全的不足,特别是对弱势群体上的不足;可以充分利用科普人才资源;可以合理解决科普人力资源上的不足,实现双赢;可以促进互助博爱理念及公益志愿精神的形成。它是国家和社会的需要,也是科普实质的表现。     

The changing sensitivity of realized portfolio betas to U.S. output growth: An analysis based on real-time data

Our results shed light on the sensitivity of the betas of portfolios formed on market capitalization (“size”) and book-to-market value (“value”) to output growth in the United States. We estimate a state-space model to analyze the sensitivity of portfolio betas to output growth. We measure output growth using real-time and revised data. Output growth has a significant effect on portfolio betas when size and value are high. Such portfolio betas exhibit countercyclical dynamics. They are more sensitive, in absolute terms, to output growth when the latter is measured using real-time data. Their sensitivity to output growth has grown over time. Portfolio betas with respect to output growth have become smaller over time, in contrast, when size is large but value is low.     

Mix of Fiscal and Monetary Policy Rules and Inflation Dynamics in China

The present paper examines the role of the mix of fiscal and monetary policy rules in determining inflation dynamics using fiscal and monetary policy reaction functions and Markov‐switching vector autoregression methods based on quarterly data in the period 1992–2007. Our results show that fiscal and monetary policies in China can be adequately described using some simple rules, and that significant regime shifts took place around 1998. Fiscal policy tended to be active and countercyclical in the pre‐1998 period, then switched to be passive and more countercyclical, whereas monetary policy was characterized as passive and procyclical in the pre‐1998 period, and switched to be active and countercyclical afterwards. The mix of fiscal and monetary policy rules can explain inflation dynamics better than the monetary policy rule alone. Therefore, price stability requires not only appropriate monetary policy but also appropriate fiscal policy.     

美国金融危机与金融监管改革——基于新政治经济学的视角

金融监管的新政治经济学强调,作为一国政治制度行为主体的利益集团和政党在政策选择上具有十分重要的作用。本文分析了美国金融利益集团与左右翼政党的政策偏好对美国金融监管失灵与金融监管改革的影响。     

Agglomeration and productivity: Firm-level evidence from China's textile industry

Is the spatial concentration of manufacturing activity able to enhance firm-level productivity? This question is particularly relevant to production in China, which has a huge territory and population, but a skewed distribution in terms of urban–rural development. This paper aims to examine the dynamics of industrial agglomeration and the impact of agglomeration on firm-level productivity in China's textile industry by using a firm-level panel dataset from 2000 to 2005. First, the average value of the Ellison–Glaeser (EG) index (city level) is found to be approximately 0.00019. Moreover, the calculated city EG index of spatial concentration for each year exhibits a decreasing trend of spatial agglomeration for garments and other fiber products, but an increasing trend for the textile industries' agglomeration in China. The above findings are similar to the findings of Lu and Tao (2009). Secondly and importantly, this study finds an inverted U-shape relationship between agglomeration and productivity. It suggests that while industrial agglomeration enhances firms' productivity, agglomeration diseconomies may appear if the degree of agglomeration is too high.