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991.
992.
We explore the performance of risk arbitrage involving three types of merger offers: cash tender, stock swap, and collar offers for the period between 1990 and 2000. Our result reveals that risk arbitrage for a successful stock offer generates higher returns than a successful cash offer. This finding implies that the profitability of risk arbitrage depends on the level of asymmetric information associated with the payment method. We also find that the beta of typical risk arbitrage positions/portfolios is heavily influenced by the payment method and market conditions. 相似文献
993.
B. C. Holleman 《Quality and Quantity》2006,40(1):1-38
Survey questions worded with the verb ‘forbid’ prove not to elicit opposite answers to equivalent questions worded with the verb ‘allow’ (Rugg 1941). Although ‘forbid’ and ‘allow’ are generally considered each other’s counterparts, respondents rather answer ‘no, not forbid’ than ‘yes, allow’. In order to find out which question is a more valid measure of the underlying attitude, this asymmetry in the answers has to be explained. Experiments show that the asymmetry arises because respondents translate similar attitudes differently into the answering options to forbid/allow questions are equally valid, but the way the attitudes are expressed on the answering scale differs due to the use of ‘forbid’ or ‘allow’. How does this translation process work? The leading hypothesis in forbid/allow research predicts that respondents holding moderate opinions feel that ‘yes forbid’ and ‘yes allow’ are very extreme, causing moderate respondents to prefer answering ‘not forbid’, or ‘not allow’. This article presents the results of 10 experiments investigating the meanings of the answering options to forbid/allow questions. Extreme connotations are shown to only provide part of the explanation for the occurrence of the forbid/allow asymmetry. In order to describe the answering process for forbid/allow questions, well-definedness of meanings proves to be an important additional factor. The meanings of answering options to allow questions are ill-defined compared of those to forbid questions, which causes allow questions to be less homogeneous measures of the underlying attitude than forbid questions. 相似文献
994.
L.l. Ellis 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2006,74(4):682-701
Based on the Bureau of Economic Research (BER's) 2005 HIV/AIDS survey, this paper provides a snapshot view of the nature and the extent of the impact of HIV/AIDS on companies of different sizes in South Africa, as well as their response to the epidemic. Whereas the focus of most of the previous workplace surveys has been on “evaluating workplace responses”, the present study also considers the economic impact of HIV/AIDS. This study provides evidence of the impact of HIV/AIDS on the largest sample of small, medium and large companies in South Africa to date. The survey results suggest that employer responses are strongly linked to company size, with the majority of medium and large companies indicating that they have an HIV/AIDS policy in place and small companies having done little in the way of action against the epidemic. 相似文献
995.
Ann Marie Hill Angela Anning 《International Journal of Technology and Design Education》2001,11(2):111-136
There is a lack of evidence that examines, together, the triad of how teachers in elementary/primary schools are translating
curriculum requirements for teaching design, within technology frameworks, in their classrooms, how their students then proceed
with design, and how ’school situated design’ relates to ’workplace design’. This paper explores the relationships between
designerly thinking and behaviours situated in classrooms and in the workplace, beliefs about how designing is learned in
schools and in the ’real world’, and children’s, teachers’ and designers’ understanding of design. These are be illustrated
by extracts from interviews with teachers, children and designers and evidence of designing in classrooms and in the workplace.
Similarities and differences between evidence from ’school situated design’ and ’workplace design’ and from Canada and the
United Kingdom (UK) are discussed.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
996.
<正> 克林顿总统的第二个任期已经开始。在经历了1995~1996年中美关系的曲折与反复之后,克林顿新政府的对华政策究竟会呈现什么样的走向,其对华政策是否会保持一定的连续性与稳定性,哪些因素将制约调整后的对华政策的贯彻,这些正是本文试图探讨的。 相似文献
997.
本文首先指出传统的滚动密钥产生器,在滚动密钥生成的过程中,状态转移函数和输出函数的结构初值及其状态初值都是固定的不变的,因此,利用在道中截取足够长的数据,原则上,总是可以破译的。鉴于此,我们在数字或准混沌意义上,采用综合算法提出了变结构/变初值准混沌滚动密钥产生器,使之在滚动密钥的生成过程中,状态转移函数和输出函数每一个字节都更新一次结构初值和状态初值,且永不重复、不可预测。在未建立综合数字之前, 相似文献
998.
本文介绍了实现印制电路板CAD/CAPP/CAM一体化所作的工作,重点解决了数控钻孔文件向没有通信接口的EXCELLON200数控钻床的传输问题,制定了印刷电路板CAD/CAPP/CAM的有关规定,印刷电路板CAD/CAPP/CAM一体化的建立,极大地提高了印刷电路板生产的效率和质量。 相似文献
999.
基于Internet/Intranet的会计决策支持系统设计研究 总被引:1,自引:0,他引:1
新经济时代的到来对会计决策提出了更高的要求,技术的创新又为会计决策提供了先进的实现手段。本文定义了基于Internet/Intran的et会计决策支持系统的含义,并阐述了其产生的客观基础;指出了ADSS所支持的会计决策问题;提出了ADSS的功能结构,建立了以数据仓库为中心、以数据挖掘为手段、以知识库与模型库为支撑的ADSS逻辑结构;构建了ADSS的网络实现模式。 相似文献
1000.
李长白 《沈阳工程学院学报(社会科学版)》2005,1(1):34-35,81
马克思关于求导数的运算结果应该是严格的0/0的观点是正确的,因为微积分运算不同于初等数学的运算。唯物辩证法认为一切真理都是相对真理,所以不应该把初等数学中的不允许0/0的规定绝对化。但是它应该只是一个突破口,我们应该运用唯物辩证法重新建立微积分的基础。 相似文献