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1.
现金流量管理与实际活动操控关系研究 总被引：3，自引：0，他引：3
以现金流量“扭负”动机为视角，以我国A股市场的上市公司为研究对象，采用销售操控、费用操控和生产操控反映实际活动操控的内容。通过对比分析现金流量“扭负”公司和非“扭负”公司的异常经营现金净流量、异常操控费用、异常生产成本和实际活动整体操控程度的差异，发现上市公司为达到现金流量“扭负”目标，利用实际活动操控来管理现金流量的证据，得出了实际活动操控是现金流量管理方式的结论。 相似文献
2.
郑伟 《内蒙古科技与经济》2010,(7):19-22
文章在国内外学者已有的研究成果上，采用统计学的分析方法，以2005～2007年在沪、深两市上市的河北省上市公司为研究对象，结合河北省上市公司的特点，选择公司规模、公司的盈利能力、公司的成长性为研究目标．对河北省的上市公司进行了实证分析，并针对研究结果提出了相应的优化措施。 相似文献
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以深圳证券市场2009-2014年创业板上市公司为研究样本,检验了市场环境和公司研发投资之间的关系。实证检验的结果显示:宏观治理环境、创新氛围和辅助创新条件与研发投资显著正相关,表明改善市场创新环境能促进公司创新。进一步,在区分公司类型和公司年龄的情况下,研究表明,相比较非制造业的上市公司,制造业上市公司的市场环境与研发投资之间显著正相关;相比较高年龄的上市公司:低年龄上市公司的市场环境与研发投资之间显著正相关。 相似文献
5.
于健南 《内蒙古科技与经济》2004,(16):45-47
本文从公司治理结构的角度，分析了上市公司会计造假、财务报告失真的原因，并提出了完善上市公司内部控制制度的建议，阐明了加强审计委员会、内部审计师、外部审计师对财务报告的监督作用是提高我国上市公司财务报告的质量，保证资本市场的健康、有序运行的关键。 相似文献
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本文运用因子分析和回归分析方法,对我国上市公司的资本结构影响因素进行分析。研究发现,上市公司资本结构的影响因素主要有偿债保证、市场竞争力、公司风险、流动性及成长性五个因子。且市场竞争力越强的公司短期负债越少;风险大的公司长期负债使用较少;长期负债取得的难易影响固定资产投资,进而影响到公司的成长。 相似文献
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本文通过分析上市公司收购中目标公司控股股东应承担的诚信义务的法理基础、内容范围等，进而就我国目标公司控股股东的诚信义务提出法律规制的建议。 相似文献
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以前国内盈余管理的研究都是基于年度财务数据，本文则以股权再融资为背景考察我国上市公司的季度盈余管理现象。实证上市公司股权再融资前后李度盈余管理的存在性及时间分布特征。国外学者研究上市公司资本市场动因的盈余管理时，大多使用季度财务数据。我国尽管从2003年开始就应经有完整的上市公司季度财务数据，但是很少有国内学者采用季度数据研究资本市场动因的盈余管理。研究资本市场动因的盈余管理时，采用季度数据响度与年报数据有许多优势。本门通过采用季度财务数据，基于中国资本市场进行研究。研究结果证实了上市公司股权再融资前后季度盈余管理的存在性及时间分布特征。 相似文献
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以我国上市公司2006年的并购活动为研究对象,从收购公司和目标公司两个角度入手,采用事件研究法对这一时间段内我国上市公司并购活动中并购双方投资者的短期收益作以分析。得出研究结论认为,并购事件为目标公司的投资者带来了短期的超额回报,却没有增加收购公司投资者的投资获利,信息漏损现象仍然存在。 相似文献
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财务困境是由公司管理不善和经营状况恶化造成的，国外通常将其界定为破产，鉴于本文的研究对象是上市公司，所以财务困境被界定为因财务状况异常而被ST或PT的公司。 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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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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《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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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
19.
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
20.
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