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1.
依法从严打击内幕交易是我国金融监管的重要任务,也是推动资本市场高质量发展的重要保障。本文手工收集2007—2020年我国证监会公布的内幕交易行政处罚书中涉及的内幕信息和内幕交易数据,考察我国股市内幕交易的行为特征。研究发现:(1)从中美股市对比看,我国股市中消极型内幕信息占比更低,内幕信息泄露时间更长,内幕信息泄露期间和信息公告日的收益率绝对值更低。此外,我国股市中依托家人关系传递内幕信息的比例高于美国。(2)公司外部人尤其以朋友关系传递的内幕信息致使更高的内幕交易规模和收益率。(3)内幕交易显著提高了内幕信息泄露期间相关方的股票收益率。本文丰富了内幕交易学术文献,也为我国监管机构提升内幕交易监管效率提供了有益借鉴。  相似文献   

2.
内幕交易理论的普通法基础   总被引:2,自引:0,他引:2  
本文以美国最高法院的重要判例为主线,讨论内幕交易的"特定事实"学说、经典理论和盗用理论,分析这些理论的普通法基础及其演变过程,以图说明内幕交易法的移植是一件非常困难的事,各国(地区)只有以自己的基本法律、执法机制和司法体制为依归,才能发展出合用的内幕交易法.  相似文献   

3.
肖磊 《金融与经济》2005,3(6):26-29
本文在对现有研究方法的改进和对样本选择进行完善的基础上,实证检验了我国股市的内幕交易问题。实证结果表明,我国股市存在普遍且严重的内幕交易现象,其中围绕利好消息的内幕交易尤为突出。针对这种状况,本文提出了加强对内幕交易进行监管的若干政策建议。  相似文献   

4.
本文以中国证监会公布的内幕交易行政处罚公告为数据来源,从数量和主导者结构上分析我国股市内幕交易行为的现状,并从伦理、制度和监管三个层面分析内幕交易行为,最后提出相应的政策建议。  相似文献   

5.
黄小亮 《云南金融》2011,(6X):149-149
本文以中国证监会公布的内幕交易行政处罚公告为数据来源,从数量和主导者结构上分析我国股市内幕交易行为的现状,并从伦理、制度和监管三个层面分析内幕交易行为,最后提出相应的政策建议。  相似文献   

6.
近年,单位作为主体从事内幕交易的案例呈增加之势。本文结合行政执法与刑事司法实践,结合近年典型单位内幕交易案例,并借鉴海外监管查处经验,着重讨论了单位内幕交易认定的一些疑难法律问题,诸如是否将单位作为违法主体以及是否处罚、如何认定单位知悉与利用内幕信息、如何区分单位内幕交易行为与个人内幕交易行为等问题。  相似文献   

7.
在对内幕交易监管有效性的分析上,由于研究方法和目标的不同,研究的结果也出现了很多分歧。本文对已有的研究进行了纵向比较和横向比较,从内幕交易法律的实施和国际监管的角度入手,对内幕交易监管的有效性进行分析,认为内幕交易监管是相对有效的。投资者信心、市场与法律的测度方法,以及投资者交易策略等因素都会影响到内幕交易监管的有效性。  相似文献   

8.
李命志 《中国金融》2003,(22):46-47
英美两国对证券内幕交易的认定美国是较早对证券内幕交易进行法律规制的国家。1934年美国的《证券交易法》首先以法律形式禁止包括内幕交易在内的各种证券欺诈行为,在1984年的《内幕交易制裁法》和1988年的《内幕交易与证券欺诈强制法》中又进一步采取了更严厉的措施。尽管成文  相似文献   

9.
有效识别和防控内幕交易对维护资本市场的健康发展具有重要现实意义.只要内幕信息知情人或者非法获取内幕信息人在内幕信息敏感期内从事或者明示、暗示他人从事,或者泄露内幕信息导致他人从事了与该内幕信息有关的证券交易活动,内幕交易行为即告成立.本文提出的“五步锁定法”识别系统可以有效地识别内幕交易行为.加强内幕信息知情人的管理、提高对内幕信息传播途径的取证能力、增强对内幕交易的监管力量以及加大对内幕交易的处罚执行力度等措施构成了有效防止内幕交易行为发生的防控体系.  相似文献   

10.
内幕交易是证券法学界炙手可热、经久不衰的热门课题,关于内幕交易的各种概念、学说、理论被学术界翻炒得烂熟,解剖个案麻雀的精彩论著也不鲜见,但受制于案例、资料和相关数据的局限,少有学者从实证角度,系统性地研究我国内幕交易成案的总体特征。本文力图在传统证券法学研究途径之外,独辟蹊径,通过运用统计、数量分析等经济学科工具,对证券市场成立以来查处的全部31起内幕交易案件加以实证分析,以期得出我国内幕交易案件的发案特征与规律,为打击和防范内幕交易违法行为,修订内幕交易法制提供数据支持和实证参考。  相似文献   

11.
We investigate the role of internal corporate governance in limiting opportunities for ASX company ‘insiders’ to extract abnormal returns from trading ‘own shares’. We show that stronger governance translates into more restrictive insider trading policies and, while not resulting in lower insider purchase volumes, values or profits, it does reduce insider selling profitability. Firm size and increasing trading policy restrictiveness is associated with reduced insider purchase profitability while insider sale profitability is reduced by aggregate governance, trading restrictions and increasing trading policy restrictiveness. We conclude that internal firm governance constrains insider sales but not purchases, providing contrarian trading signals.  相似文献   

12.
We provide the evidence of ethical differences between female and male top managers and insiders in conducting profitable trades with their own company stocks. Using a large sample of Chinese insider trading activities, we find that female insiders trade less profitably, which can be attributed to their higher ethical values. This relationship is robust for various profitability measures and holds after addressing potential endogeneity bias. We also provide evidence that our findings are not explained by female insiders' informational disadvantage, risk aversion, managerial ability, trading experience or concerns for differential legal consequences. Our study provides a more direct evidence on the ethical differences in gender in the context of insider trading.  相似文献   

13.
Where Is the Market? Evidence from Cross-Listings in the United States   总被引:2,自引:0,他引:2  
We analyze the location of stock trading for firms with a UScross-listing. The fraction of trading that occurs in the UnitedStates tends to be larger for companies from countries thatare geographically close to the United States and feature lowfinancial development and poor insider trading protection. Forcompanies based in developed countries, trading volume in theUnited States is larger if the company is small, volatile, andtechnology-oriented, while this does not apply to emerging countryfirms. The domestic turnover rate increases in the cross-listingyear and remains higher for firms based in developed markets,but not for emerging market firms. Domestic trading volume actuallydeclines for companies from countries with poor enforcementof insider trading regulation.  相似文献   

14.
This study systematically examines the ability of aggregate insider trading to predict future market returns in the Chinese A-share market. After controlling for the contrarian investment strategy, aggregate executive(large shareholder)trading conducted over the past six months can predict 66%(72.7%) of market returns twelve months in advance. Aggregate insider trading predicts future market returns very accurately and is stronger for insiders who have a greater information advantage(e.g., executives and controlling shareholders).Corporate governance also affects the predictability of insider trading. The predictability of executive trading is weakest in central state-owned companies,probably because the "quasi-official" status of the executives in those companies effectively curbs their incentives to benefit from insider trading.The predictive power of large shareholder trading in private-owned companies is higher than that in state-owned companies, probably due to their stronger profit motivation and higher involvement in business operations. This study complements the literature by examining an emerging market and investigating how the institutional context and corporate governance affect insider trading.  相似文献   

15.
文章分析了美国《证券交易法》规则10b5—2的合理性和缺陷,同时参照美国、台湾和日本的证券立法实践,对我国《证券法》中有关内幕交易主体的规定存在的缺陷提出了修改和完善的建议。我国《证券法》应将家庭成员、发行人和外部信息制造者纳入内幕交易的主体范围,这对于正确理解和完善内幕交易的法律规则将起到积极作用。  相似文献   

16.
基于期权平价原理的内幕交易管制设计   总被引:1,自引:0,他引:1  
根据期权平价原理,股票、零息国债、欧式股票的买权与卖权等四类资产之间存在一种等价关系,因此每种资产都可由其他三个变量的投资组合来进行等价的表达。某些高管人员利用政府对分属于不同领域的投资组合的管制差异,以等价的期权投资组合替代股票交易从而进行变相内幕交易。中国证券监管部门有必要对管制制度安排进行优化,将衍生证券交易也纳入到内幕交易管制系统中来。  相似文献   

17.
Insider trading encompasses the buying or selling of stocks based on non-public information about the securities in question. Engaging in insider trading is particularly unethical for a Chief Financial Officer (CFO) who holds a fiduciary responsibility to shareholders and also typically is ethically obligated by his or her professional responsibilities. Although the Securities and Exchange Commission (1934) has expressly forbidden insider trading, the business press suggests insider trading continues. An application of Cooter’s [Cooter, R., 1997. Normative failure theory of law. Cornell Law Review 82 (5), 947–979; Cooter, R., 2000. Three effects of social norms on law: Expression, deterrence and internalization. Oregon Law Review 79 (1), 1–22] theory of the law and norms suggests that one explanation for the continuation of insider trading is that although illegal, norms may fail to consider insider trader to be unethical. Nevertheless, our knowledge of the norms regarding insider trading is limited. To address this gap, we examine the ethical norms regarding CFOs’ insider trading, and consider the extent to which contextual variables are associated with ethical perceptions of CFO insider trading. We find that insider trading by CFOs is generally perceived to be unethical but not by all participants, nor all ethical measures. Moral equity is particularly informative for understanding the ethicality of CFO insider trading. When relying on the multidimensional ethics scale (MES) measure of moral equity, our results reveal that contextual factors, including trading method used (stock options or share equity) and the direction of earnings surprise (favorable or unfavorable) are significant. We also found that participants that possessed more work experience or financial expertise had a greater tendency to consider CFO insider trading to be unethical than those with less work experience or financial expertise, which suggests the importance of training and education of the general public. In addition, our findings suggest that tougher sanctions will encourage compliance with existing insider trading laws. Implications of our findings for public policy are discussed.  相似文献   

18.
李善民  杨楠  黄志宏 《金融研究》2023,511(1):169-187
并购重组中基于内幕信息的知情交易行为既是监管重点,也是学术界关注的热点问题。本文以2006—2020年我国上市公司并购重组事件为样本,考察并购重组前的知情交易行为对并购公告收益的影响。研究发现:并购重组前的知情交易行为引发了主并公司股价的提前反应,从而降低了并购公告时的市场反应,这一现象是由内幕信息泄露引起,且内幕信息主要来源于包括员工在内的公司内部人,而非机构投资者。进一步分析表明,改善信息环境可以有效缓解并购重组的信息泄露问题,体现为知情购买交易的信息泄露效应受到分析师跟踪、审计质量和问询函制度的有效制约。本文研究深化了现有的并购重组内幕交易行为研究,为实施精准监管和防范内幕交易等政策提供了一定参考和依据。  相似文献   

19.
本文着眼于澳大利亚在治理金融衍生品市场内幕交易中积累的丰富经验,针对一个崭新的前瞻性课题,即金融衍生品市场的内幕交易问题展开研究。作者认为,由于内幕交易与信息非对称性之间存在的内在冲突,实际上反内幕交易法规很难有效地阻止金融衍生品的内幕交易行为,过于复杂的反内幕交易法规会对市场产生一些负面影响,而放松内幕交易监管这一新思维将对市场的良性发展更为有益,应该让市场来决定内幕交易行为的“存亡”。但目前最为现实、温和的选择仍然是修改现行反内幕交易法,以维护市场的公平性和有效性。最后,笔者对如何缓解中国目前内幕交易猖獗的现状提出建议。  相似文献   

20.
There is considerable controversy on the role of corporate insider trading in the financial markets. However, there appears to be a consensus view that some form of regulation concerning their activities should be imposed. One such constraint involves a trading ban in periods when corporate insiders are expected to be advantaged vis-à-vis the information flow. This paper directly tests whether constraints of this kind are effective in curtailing insider activity through a study of the trading characteristics of UK company directors. The London Stock Exchange Model Code (1977) imposes a two-month close period prior to company earnings announcements. We find that although the close period affects the timing of director trades, it is unable to affect their performance or distribution. Directors consistently earn abnormal returns irrespective of the period in which they trade. They tend to buy after abnormally bad earnings news and sell after abnormally good earnings news. Moreover, there are systematic differences in the trading patterns of directors surrounding interim and final earnings announcements. It appears that many corporate insiders have private information and exploit this in their trading activities. As a result, one can conclude that trading bans do not impose significant opportunity costs on the trading of corporate insiders.  相似文献   

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