对金融衍生品市场内幕交易的一些新思考——澳大利亚现行的反内幕交易法及其带给我们的若干启示

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。     

内幕交易立法的经济分析

内幕交易是证券市场中被禁止的一种经济现象,完善反内幕交易的法律规范基础在于对内幕交易的产生和存在进行经济分析.本文从正反两反面对内幕交易行为进行了经济分析,力求从经济根源上剖析反内幕交易的必要性.     

证券市场内幕交易认定的前沿探索

证券市场内幕交易行为的存在会影响金融稳定与安全,内幕交易的认定是对其进行规制的重要内容。本文通过梳理实践中出现的认定困境、学术争议和域外经验,认为内幕交易的主体认定应以特定身份为原则,不再以非法手段为要件,并增加豁免情形,主观方面可借鉴折中知悉标准,客观方面应不以发生实际结果为要件,信息敏感期间的形成节点则应适当提前,希冀内幕交易认定更具可操作性和合理性,以期对规避内幕交易和证券市场稳定发展有所裨益。     

期货市场内幕交易监管及认定——美国期货期权内幕交易最新案例的比较视角

本文以近期美国期货市场发生的内幕交易案件为着眼点，具体分析美国商品期货交易委员会(CFTC)最近查处的期货市场利用客户信息型内幕交易行为，即利用客户大笔交易期货及期权的信息抢先下单并以有利的交易价格进行成交获利。案件中，被告在近五年的时间内2000余次实施类似的交易行为，违反了CFTC反欺诈细则及内幕交易监管规定。通过案例比较，分析境内外期货内幕交易行为特征以及认定，为我国期货市场内幕交易监管提供启示。     

内幕交易的法律规制研究

在证券交易活动中,内幕交易行为时有出现,而且在资本市场企业并购重组活跃环境下,内幕交易不断呈现出新的态势.该行为不仅损害广大投资者的正当利益,而且严重违背证券市场公开、公平、公正的原则,破坏了证券市场的正常交易秩序.故而,我们必须要认清内幕交易的现状,发现并立足于现有防范措施存在的缺陷,完善内幕交易的法律规制,以维护资本市场的健康发展.     

浅析单位内幕交易违法的认定与处罚

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。     

我国证券市场内幕交易研究

证券市场内幕交易行为扰乱证券市场的正常运行秩序,损害普通投资者的利益。但由于内幕交易手法多样、甄别难度大等原因,监管内幕交易行为一直是我国乃至全世界范围内共同存在的难题。本文从内幕交易形成机制和监管的问题两方面分析如何全面、最优地进行监管,以减少内幕交易行为的滋生。     

内幕交易新动向及其法律规制研究

在资本市场企业并购重组活跃环境下,内幕交易这一资本市场"痼疾"不断呈现出新动向,如行为加剧化、主体多元化等.内幕交易新动向的法律成因主要在于现行法律法规对内幕交易规制的缺陷,即内幕交易法律责任的不力、内幕信息认定标准的不足、内幕交易取证的不易以及上市公司内部控制信息披露机制的不健全.因此,应立足于这些缺陷,完善内幕交易的法律规制,以维护资本市场的健康发展.     

证券市场内幕交易的识别与防控——基于我国法律框架下的路径分析

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.     

我国股票市场内幕交易行为分析

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。     

内部控制与内部人违规交易行为

以2009~2012年沪市上市公司为研究样本,以内部人违规交易比率、内部人敏感期交易比率和内部人延迟披露比率作为内部人违规交易行为的替代变量,考察了内部控制对内部人违规交易行为的影响。研究发现,内部控制质量与内部人违规交易比率和内部人敏感期交易比率显著负相关,与内部人延迟披露比率之间的关系不显著。研究结果表明,总体而言,内部控制能有效抑制内部人违规交易行为的发生,有利于提高内部人交易的合法合规性。     

我国证券市场内幕交易的法学实证分析——来自31起内幕交易成案的统计分析

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。     

Insider Trading and the Bid-Ask Spread

This study examines the intertemporal and cross-sectional association between the bid-ask spread and insider trading. Empirical results from the cross-sectional regression analysis reveal that market makers establish larger spreads for stocks with a greater extent of insider trading. The time-series regression analysis, however, finds no evidence of spread changes on insider trading days. These results suggest that although market makers may not be able to detect insider trading when it occurs, they protect themselves by maintaining larger spreads for stocks with a greater tendency of insider trading. The results also reveal that market makers establish larger spreads when there are unusually large transactions. In addition, this study finds that spreads are positively associated with risk and negatively with trading volume, the number of exchange listings, share price, and firm size.     

内幕交易罪的司法困境及出路研究

近年来内幕交易案件频发,无论是"杭萧钢构案",还是"上海祖龙内幕交易案"都在司法认定方面引起了理论和实务界的较大争议。这充分表明,在认定内幕交易罪的司法实践中仍然存在很多待解的难题。只有在对这些司法难题进行深入剖析的基础上,重构内幕信息的认定标准、改善内幕交易行为的取证路径、强化内幕交易的执法力度、完善机制设计,才能破解司法难题,维护证券市场的公平公正,保障证券法律法规得以遵守和执行。     

Do Insider Trading Laws Work?

This paper presents the first comprehensive global study of insider trading laws and their first enforcement. In a sample of 4,541 acquisitions from 52 countries, I find that insider trading enforcement increases both the incidence, and the profitability of insider trading. The expected total insider trading gains increase. Consequently, laws that proscribe insider trading fail to eliminate insider profits. However, harsher laws work better at reducing the incidence of illegal insider trading.     

Insider Trading: Implications and Responses

An understanding of the implications of insider trading can only be achieved by analysing conflicting perceptions of what is meant by inside or privileged information. Empirical evidence on insider trading, mainly reflecting United States experiences, challenges assumptions not only about the impact of insider trading but also the efficiency of financial markets. There are hierarchies of market participants and rules on insider trading capable of practical implementation will only change the rankings. Companies have a property interest in their inside information and should bear the responsibility for its use.     

Insider Trading in the Hong Kong Stock Market

Many previous studies on insider trading are based ondata in the U.S. capital market and conclude thatinsiders can earn abnormal profits. This paperexamines abnormal price performance associated withinsider trading in the Hong Kong stock market. We findthat abnormal profits associated with insider tradingare all concentrated on small firms. Trading volumedoes matter in determining the magnitude of thoseabnormal profits. Our results show that insiders ofmedium-sized and large firms do not earn abnormalprofits. Finally, it is found that outsiders who mimicthe information of insider trades associated withmedium-sized and large firms cannot earn abnormalprofits.     

Information‐Hedging Disclosures and Insider Trading

I model the effect of disclosure on the tradeoff between information risk, liquidity risk, and price risk for a well‐informed, risk‐averse insider. Revealing some information before trading decreases the variability of the insider's information advantage and thus reduces his information risk. Disclosure also lowers adverse selection costs for market makers, which reduces the insider's liquidity risk by increasing his trading flexibility. However, disclosure increases price risk for the insider because the price fully reflects the revealed information. The reduction in information and liquidity risks outweigh the rise in price risk when the insider is less risk averse because a less risk‐averse insider's information‐based motive for trading is stronger than his hedging motive. The opposite relation holds when the insider is more risk averse. Therefore, a less (more) risk‐averse insider experiences an increase (decrease) in welfare when he discloses some information before trading. Cost of capital and policy implications are identified.     

Trading on inside information when there may be tippees

This paper compares four scenarios of a model in which, for the possible presence of tippees, firm insiders may not be the only persons having inside information. The four scenarios are that of free insider trading, that with a ban on insider trading, that of observable insider trading, and that with full disclosure of information. Each of these scenarios is shown to be strictly more efficient than the one before so long as there is a positive probability that a tippee exists. The paper sheds some light on why and how insider trading should be regulated, and also on the role of the disclosure system in the overall scheme of securities regulation.