上证180指数效应实证研究

选取上证180指数2002年12月到2005年1月期间五次成份股调整为样本,采用标准化残差方法 克服了事件研究中因聚类问题对统计结果的影响,对指数调整期间的价格和成交量效应进行 实证研究。研究发现,调入和调出股票均对调整信息做出了相应的反应,调入股票存在正的 持久的超额收益,调出股票负的超额收益发生了反转。这种非对称现象可以由投资者关注和 市场分割假说解释     

理性极限及其突破断想

思维具有历史的特征.而理性思维只是人类思维的一个阶段.因此,理性思维及与之相对应的理性哲学都无法超越自身的历史局限.理性哲学缺失与当下生活的对应的根本原因就在于理性极限.而理性的偏见与虚妄的悲剧价值预设正是这种极限的表现.打破理性极限的前提是将理性还原于历史中并具体列出突破理性哲学的叙述方案.     

2010年广州亚运会旅游的战略地位与应对策略

广州亚运会具有体育与事件旅游双重属性。旅游业是深度利用亚运会的主力资源,是提升城市竞争力的动力产业,在亚运会战略实施中占有重要地位,因此应在亚运赛前、赛中与赛后采取相应对策。政府的高度重视与战略规划是实施关键。     

Professionalization through attrition? An event history analysis of mortalities in citizen journalism

ABSTRACT

Despite both scholarly and popular claims that citizen journalism (CJ) represents a growing democratizing force in the journalistic field, recent scholarship in the area has noted the decline of the organizational population of CJ. In this paper, we investigate how individual characteristics of sites and the dynamics of larger organizational population affect a CJ site’s risk of experiencing a mortality. Drawing on the largest sample to date of US-based English-language CJ sites, this study examines the risk of site mortality through an event history framework. Findings indicate that the strongest predictor of a site’s mortality is the age of the site, consistent with organizational population theory’s ‘liability of newness.’ We also find that for-profit and community-based sites have lower rates of site mortality, indicating that adopting legitimate conventions of journalism may serve as a protective buffer to site death. The results offer mixed evidence on whether CJ has become more professionalized via attrition.     

我国公司发行可转换债券的市场反应

使用事件研究法,分析了我国公司发行可转换债券的市场反应。研究表明,我国公司发行可转换债券后市场没有出现显著负的反应,与股权再融资的市场反应明显不同,与国外可转换债券发行的市场反应有差异。政府的奖优政策是可转换债券市场反应特殊性的重要原因。     

和谐社会视野下的政府危机管理体制——由松花江水污染事件引发的思考

以和谐社会建设理论为视野,阐述了政府危机管理的含义,在此基础上审视了我国的立法现状,并分析了我国政府危机管理的缺陷,进而加以合理的制度设计,以提高政府的危机管理能力,确保和谐社会的实现。     

The Solidary Relationship’s Consequences for the Ebb and Flow of Activism: Collaborative Evidence from Life-History Interviews and Social Media Event Analysis,

Acting in solidarity with deprived others has become a central topic in social movement research. The explanations of solidarity activism or political altruism are few. However, social movement researchers have claimed that solidarity with out-of-group others is a by-product of in-group interaction. In contrast, we argue that out-group interaction with the deprived other and the formation of a solidary relationship is central to the ebb and flow of solidarity activism. We investigate the Danish refugee solidarity movement and show that the meeting with the deprived other 1) brings about an interaction order which makes an ethical demand on the activists to care for the other both within the bounds of the situations and in the future; 2) enacts and amplifies activists’ values and beliefs because the deprived other becomes an exemplar of the injustice and the need to help the broader group of people in the same fragile situation. We develop and test this theory drawing on 42 life-history interviews and a social media dataset containing a panel of 87,455 activists participating in refugee solidarity groups.     

中小企业税务筹划探析

税收作为国家宏观经济调控的手段,调控作用愈来愈明显,为企业税务筹划提供了施展的空间,尽管中小企业税务筹划的主观愿望是为减轻税负,客观上却促进了中小企业在国家税收杠杆引导下,走优化产业的道路,反过来,对完善税法又起到了促进作用。使中小企业正视税务筹划、区分偷税、漏税以正确选择合法的税务筹划方法。     

Modelling period fertility: Schooling and intervals following a birth in Eastern Africa

We describe a regression-based approach to the modelling of age-, order-, and duration-specific period fertility, using retrospective survey data. The approach produces results that are free of selection biases and can be used to study differential fertility. It is applied to Demographic and Health Survey data for Ethiopia, Kenya, Tanzania, and Zimbabwe to investigate differential trends in fertility by education. Parity progression fell and the intervals following each birth lengthened between the 1970s and 2000s in all four countries. Fertility fell most among women with secondary education. In contrast to other world regions, postponement of successive births for extended periods accounted for much of the initial drop in fertility in these African countries. However, family size limitation by women with secondary education in Ethiopia and Kenya and longer birth spacing in Zimbabwe also played significant roles. Thus, birth control is being adopted in Eastern Africa in response to diverse changes in fertility preferences.     

当前中国群体性事件的政治学思考——基于亨廷顿政治稳定理论的视角

亨廷顿政治稳定理论认为,现代性孕育着稳定,而现代化却滋生着动乱.为了实现现代化进程中的政治稳定,要建设强大政府,保持政治参与水平与政治制度化的平衡发展.该理论对于理解当前中国群体性事件,解决当前中国发展与稳定问题具有借鉴意义:必须强化执政党的执政力能力建设,树立政治权威,建设有能力推动经济持续较快发展、促进社会公平正义、制衡政治参与需求、化解社会危机的强大政府.同时,要积极推进政治体制改革,使群众政治参与和政治制度化在更高水平上保持相对均衡、和谐.