Option Trading and the Intervalling Effect Bias in Beta

Prior studies show that the beta coefficient of a security changes systematically as the length of measurement interval is varied. This phenomenon, which is called the intervalling effect bias in beta, has been attributed to the friction in the trading system that causes the delays in the price-adjustment process. This study shows that option listing is associated with a decline in the beta intervalling effect bias. The decline is most pronounced for small firms. We also find that our sample firms grow significantly after option listing. Since prior research indicates that market value is a major determinant of the magnitude of the intervalling effect, we re-examine our results using a subsample that controls for market value. The results indicate that the decline in the beta bias from the pre-listing to post-listing period is still prevalent after we control for the change in firm size. Overall, the evidence is consistent with the notion that option trading reduces the delays in the price-adjustment process, which in turn reduces the intervalling effect bias in beta.     

我国会计学专业本科教育培养目标研究

会计教育培养目标作为会计教育实践的逻辑起点，对会计教育的发展方向和会计人才的培养起着制约作用，对会计教育实践活动起着支配、调节和控制作用。本文在对我国会计教育培养目标现状分析的基础上，从纵向（历史）和横向（国际）的角度探究了影响会计教育培养目标形成的因素和规律性，提出了构建会计教育培养目标的原则和我国会计教育培养目标的基本架构。     

商品分销创新经营的实践与思考

为加快邮政农资分销业务的发展,文章介绍了万安县邮政局开展农资分销业务的作法,并探讨了邮政开展农资分销业务争取政府支持、规范基础管理、创新营销方案的工作思路。     

Ethical Decision Making in Marketing: A Synthesis and Evaluation of Scales Measuring the Various Components of Decision Making in Ethical Situations

The authors present a comprehensive synthesis and evaluation of the published scales measuring the components of the decision making process in ethical situations using the Hunt-Vitell (1993) theory of ethics as a framework to guide the research. Suggestions for future scale development are also provided.     

Syndicated Loan Announcements and Borrower Value

Announcements of syndication loans increase borrowers' shareholder wealth if they are revolving credit agreements but not if they are term loans. Share price responses to revolving credit announcements are positive and significant, whereas the wealth effect for term loans is negative and significant. The results show that announcements from both the financial press and commercial information providers can affect borrower share price reaction. Overall, single syndication announcements appear to be more newsworthy than multiple announcements reported in the financial press, and we find evidence of information leakage, post‐announcement drift, or both.     

废线路板热解处理研究现状

综述了近年来国内外废旧线路板热解处理技术研究现状。着重介绍了废旧线路板热解回收的工艺、热解产物、热解机理和动力学等方面的研究进展，讨论了热解回收技术存在的问题和发展方向。     

试论加入WTO后我国反倾销形势及应对策略

我国已经胜利加入世界贸易组织。在WTO框架下，各成员国之间进行国际贸易活动时，不得采取非正当手段进行竞争或扭曲竞争，从而实现公平贸易。然而，在当前国际贸易中，一些发达家为了自己的经济利益，打着“实现公平贸易”，“维护公平竞争环境”的旗号，挥舞起“反倾销”大棒，对发展中国家的正常贸易进行制裁，造成大量摩擦，实质是典型的贸易保护主义。一、国际贸易中的倾销与反倾销倾销是指一出口国以低于正常价值的价格将本国产品销售到另一国，造成进口国相同行业受到巨大损失，是一种价格歧视和掠夺行为，一旦把进口国的同类产品…     

Technical innovation and 3.5 mobile phone generation: Lessons from Korea

In 1996, the Korean mobile communication market was the first in the world to commercialize the code division multiple access (CDMA). Since then, the voice-based mobile phone market has continued to grow and has now reached near saturation. Having recognized the potential of the mobile data service as a new source of profit, telecommunication operators are scrambling to evolve 3.5 generation (3.5G) technology in order to lead market competition. Recently, the Korean 3.5G mobile telecom market has faced stiff competition from CDMA-based EVDO Rev.A and global system for mobile telecommunications (GSM)-based high-speed downlink packet access (HSDPA). In addition, the world's first wireless LAN-based wireless broadband internet (WiBro) service was commercialized in June, 2006. This paper reviews the current status of the 3.5G technology and analyzes the service standardization strategies from the viewpoint of technological evolutions. This paper also suggests implications for Korea's specific circumstances where different mobile telecom technologies complement and compete with one another. Korea's experiences may serve as important lessons for other countries or operators who try to introduce the 3G and look beyond mobile telecom technologies.     

Extracting the information: espionage with double crossing

This paper addresses two very old issues in human society: espionage and double crossing. Our major conclusion points out that there will be a serious over rewarding problem in the direct mechanism due to double crossing in espionage, and a competitive mechanism with a relative performance regime can possibly mitigate the over rewarding problem and still extract the information.