论我国机构投资者对股票市场的反稳定作用

运用数理统计的基本原理，指出导致近几年中国股市非理性下跌的最直接原因，是以证券投资基金为主的机构投资者超常规发展。在目前的情况下，不宜继续提倡大力发展机构投资者，应努力恢复股票市场对中小投资者的吸引力，实现中国股市投资主体之间的“生态平衡”，从而支持中国股市长期稳定和谐发展。     

The Friday Effect in European Securitized Real Estate Index Returns

This study extends research on the day-of-the-week effect towards European real estate indices. We examine this anomaly for several European securitized real estate index returns between 1990 and 2003. Although the countries under analysis have unique country-specific patterns, we find that eight out of eleven European countries exhibit abnormally high Friday returns. Moreover, two different Europe indices also exhibit the Friday anomaly. The anomaly is robust with respect to extreme observations, alternative specifications and several well-known calendar effects.     

Contagion or Competition: Going Concern Audit Opinions for Real Estate Firms

We examine whether intra–industry information transfers from going–concern audit opinion announcements create contagion or competitive stock price reactions for other real estate firms operating in the same line of business. Using returns from publicly-traded land subdivision/development firms and Real Estate Investment Trusts, we find modest evidence supporting a competitive effect among rival firms as a result of another real estate firm announcing the receipt of a Going Concern Opinion (GCO) from its independent auditors.     

Board Members and Company Value

This essay surveys research about the value of individual members of boards of directors. When directors join or exit corporate boards, company stock prices respond, often in magnitudes of 1% of firm value or more. Related research shows that when a significant event impacts the stock price of one company, the effects are transmitted to other companies that share board members in common with the primary company. Share price reactions are sensitive to variables such as a director’s occupation, independence, and professional qualifications. Together, this evidence suggests that a well-functioning market for directors might already exist, making direct regulation unnecessary and possibly counter-productive.     

A multilateral approach to examining the comovements among major world equity markets

This study investigates the comovement in stock indices among major developed markets, where Morgan Stanley Capital International (MSCI) indices are employed for the purposes of the study. We employ a model that accommodates multilateral international impacts on equity index movements. The empirical results reveal the existence of significant international transmission effects among these major world markets, both in terms of returns and volatility, and mostly in a positive direction. The U.S. market, as expected, is the leading market in the sense that it has the most pervasive and significant impact on all markets across continents. However, the U.S. market exhibits a different relationship with European markets from that with Asia-Pacific markets. The evidence also suggests that strong regional transmission effects exist. A further investigation using the extended model reveals that the linkages between U.S. and European markets are driven by positive global common forces and by negative international competitive effects. On the other hand, the U.S. and Asian markets are linked through positive global common forces and positive international contagion effects. The United States, Canada, and the U.K. are the three markets that still demonstrate contagion influence over countries outside its own region. The Asia-Pacific markets are more susceptible to contagion effects. Finally, it is interesting to find that Japanese market performance became more contagious toward other markets during the Asian financial crisis period.     

旅游业乘数研究辨正

乘数效应是研究旅游业经济影响中广泛使用的一种方法.但"旅游业乘数"是一个伪命题,现有的模型、计算方法是不可靠的,广泛引用的数据也不可信.本文分析了旅游业乘数研究的不足,并提出了几点建议.     

社会养老保险新政的运行效果分析——基于沈阳市国有大型企业的调查

利用调查数据重点考察了社会养老保险新政的实际运行效果,指出了目前存在职工参保意愿不强烈、政策有效性尚不明显、对制度长期建设缺乏信心等现实问题,以期对养老保险制度的改革完善提供理论和政策依据。     

民营银行准入的福利效应研究

文章为改善中小企业融资难困境,文章运用信贷配给模型,讨论民营银行准入这项政策的福利效应问题。文章认为在我国金融结构发生深刻变化情况下,民营银行准入不会克服信息不对称这一根源性问题,准入的资产业务内容不同,民营银行的福利效应也会不同,总体上说这一政策的福利效应是有限的。     

陕西省耕地利用转型与粮食产量耦合关系研究

[目的]研究陕西省耕地利用隐形变化与产量的耦合关系,以此优化粮食生产系统的指导方式,提高陕西省粮食产量,协调陕西省耕地利用转型与粮食产量的耦合关系。[方法]文章运用变异系数法,以粮食生产的"投入指标"为评价依据,耕地利用强度由地均化肥施用量、有效灌溉比、复种指数及地均农业机械动力表征等4个指标构成,以及利用2005~2015年陕西省粮食产量,分析其耕地利用转型和粮食产量耦合关系时空演变。[结果]2005~2015年间陕西省各地市耕地利用强度数值上逐年增大,但空间布局变化较分散;从粮食产量方面来看,陕西省各地市粮食产量整体有所增长,空间分异特征较为明显;耕地利用转型与粮食产量高耦合值区增加,低耦合区值逐渐减少;从空间上看,陕西省中部地区耕地利用转型与粮食产量耦合度越来越高。[结论]陕西省耕地利用转型与粮食产量耦合度在2005~2015年间呈现耦合度逐渐增加的态势,耕地利用转型对粮食安全具有有利影响。     

制度变迁的动因与效应分析

就制度变迁概念的各种观点作了较深入的比较分析,同时从利益动因、公平效应、效率效应和自由效应等方面阐述了制度变迁的形成原因。