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投资者情绪对定向增发折价的影响研究 总被引：2，自引：0，他引：2
利用2006年至2010年第3季度的定向增发事件作为研究样本,着重分析投资者情绪对定向增发折价的影响及其作用路径。研究发现:投资者情绪对定向增发折价影响显著,投资者情绪越乐观(悲观),定向增发折价越大(小);投资者情绪对定向增发折价的影响路径分析表明,市场错误定价是投资者情绪和定向增发折价间的中介变量;进一步研究显示,定向增发题材对市场错误定价影响显著,定向增发后股票出现低估的可能性增加。 相似文献
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在回顾国内外相关研究的基础上,分析了投资者关系管理对投资满意的作用,构建了相应的理论模型,并以241家上市公司投资者为样本进行了实证检验.实证研究表明,投资者关系管理对于治理结构、财务绩效、投资满意均有积极的促进作用;而且投资者关系管理还通过治理结构与财务绩效间接影响投资满意. 相似文献
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股权结构与企业R&D投入关系的实证研究——基于A股制造业上市公司的数据分析 总被引：8，自引：0，他引：8
以我国A股制造业上市公司为研究样本,对股权结构与R&D投入的关系进行了实证检验.研究结果表明,股权集中有利于R&D投入,而且一定的股权制衡很有必要,一股独大不利于R&D投入;非机构企业法人大股东与R&D投入显著正相关;我国机构投资者已经不符合短视投资者假定;国有控股不利于R&D投入;个人大股东与R＆D投入之间的关系不明确. 相似文献
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本研究融合了高管团队断裂带与股权结构理论,利用中国电子信息产业上市国企面板数据,采取负二项式模型分析高管团队任务断裂带与创新绩效间关系及混合股权结构调节效应。结果表明：（1）当国有与非国有大股东的股权制衡程度大时,高管团队任务断裂带强度对创新绩效具有显著负向作用,而当国有与非国有大股东的股权制衡程度小时,高管团队任务断裂带强度与创新绩效间关系不显著;（2）随着大股东中机构投资者持股增大,高管团队任务断裂带强度对创新绩效正向作用增强。为了发挥高管团队任务断裂带对创新绩效积极作用,混合所有制国企需权变地安排股权结构缓解不同性质股权的利益冲突,增强高管团队知识整合。 相似文献
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现有研究表明公司治理结构差异对银行财务与社会绩效及其协同度有重要影响。本文利用我国24家商业银行在2009—2019年期间数据测度和实证分析,发现大股东之间的相互制衡、女性董事占比、银行规模等对提高银行社会绩效有利;董事会规模、外部监事占比等与银行财务绩效正相关;高管薪酬、国有股权性质与银行双重绩效协同度负相关。本文研究结果表明,亟需构建起商业银行财务绩效与社会绩效综合管理体系,并强化协同管理意识。 相似文献
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本文选择了2006-2008年深市中小板块前十大股东中有风险投资持股的168家企业作为研究样本,对于企业绩效、高管人力资本特征是否影响风险投资企业控制权配置进行了实证检验.研究显示,(1)风险投资持股与企业绩效之间显著负相关,呈现出控制权安排具有相机抉择的特征,即当公司的绩效表现不佳时,风险投资者获得了更多的权力,而公司状况好转时,风险投资者的权力会释放控制权;(2)高层管理团队成员受教育水平和政治背景与风险投资企业配置权之间显著负相关,高管团队成员平均年龄和专业背景异质性对风险投资企业控制权配置影响不显著. 相似文献
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A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
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Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献