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Assessing Credit with Equity: A Cev Model with Jump to Default 用权益评估信用:一个跳转到违约的Cev模型
Pub Date : 2005-11-01 DOI: 10.2139/ssrn.675061
A. Sbuelz, L. Campi, S. Polbennikov
Unlike in structural and reduced-form models, we use equity as a liquid and observable primitive to analytically value corporate bonds and credit default swaps.Restrictive assumptions on the .rm.s capital structure are avoided.Default is parsimoniously represented by equity value hitting the zero barrier either diffusively or with a jump, which implies non-zero credit spreads for short maturities.Easy cross-asset hedging is enabled.By means of a tersely speci.ed pricing kernel, we also make analytic credit-risk management possible under systematic jump-to-default risk.
与结构模型和简化模型不同,我们使用股权作为流动性和可观察的原始值来分析公司债券和信用违约掉期的价值。对。rm的限制性假设。避免了美国的资本结构。违约的简约表现为,股权价值要么漫漫性地触及零门槛,要么大幅跃升,这意味着短期信用利差非零。容易的跨资产对冲是启用的。通过简洁的说明。通过定价内核,使系统性跳违约风险下的信用风险分析管理成为可能。
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引用次数: 11
Management Forecasts and Litigation Risk 管理预测和诉讼风险
Pub Date : 2005-04-01 DOI: 10.2139/ssrn.709161
Stephen J. Brown, Stephen A. Hillegeist, Kin Lo
We examine the influence of the ex ante risk of class action securities litigation on firms' decisions to issue management earnings forecasts as well as the characteristics of those forecasts. We find that litigation risk is positively associated with the likelihood of issuing a forecast for both good- and bad-news firms. While the association is marginally stronger for firms with bad earnings news, our results suggest that litigation risk is unlikely to explain the observed preponderance of bad-news forecasts. We examine the effect of litigation risk on the amount of the total earnings news released in the forecast, on forecast horizon, and on forecast precision. These results indicate that higher litigation risk is associated with a higher proportion of news being released when firms have bad news. Finally, higher litigation risk is associated with forecasts being released earlier and being more precise.
我们研究了集体诉讼证券诉讼的事前风险对公司发布管理层盈余预测决策的影响,以及这些预测的特征。我们发现诉讼风险与发布利好和坏消息公司预测的可能性呈正相关。虽然这种关联对于有坏收益消息的公司来说稍微强一些,但我们的研究结果表明,诉讼风险不太可能解释坏消息预测的优势。我们考察了诉讼风险对预测中发布的总收益新闻数量、预测范围和预测精度的影响。这些结果表明,当公司有坏消息时,更高的诉讼风险与更高的新闻发布比例相关。最后,更高的诉讼风险与预测发布得更早、更精确有关。
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引用次数: 80
Governance Mechanisms, Corporate Disclosure, and the Role of Technology 治理机制、公司信息披露与技术的作用
Pub Date : 2005-03-01 DOI: 10.2139/ssrn.687138
Robert Hauswald, R. Marquez
This paper explores a firm's reliance on internal and external governance mechanisms, recognizing that the choice of one instrument relative to the other is itself part of the governance policy of the firm. Starting from the premise that firms' disclosure policies can foster external scrutiny and takeover activity we show that such external instruments then become substitutes for internal monitoring and restructuring. We also argue that, since technological progress affects the returns to internal and external information acquisition, its incidence on firms' disclosure policy drives the relative effectiveness of the two governance mechanisms. Specifically, we show that improvements in dissemination technology lead to more disclosure and more successful external governance, but less board monitoring and internal restructuring. By contrast, general advances affecting information processing have the opposite effect unless they only enhance internal processing capabilities such as performance measurement and reporting systems, in which case they increase voluntary disclosure. We also find that firms' disclosure policies fall short of the social optimum, thus providing a rationale for regulation that sets and enforces minimal disclosure standards. Our results are robust to the introduction of agency conflicts between shareholders and their boards, although divergent interests reduce the overall effectiveness of technological advances in fostering good governance. Throughout we discuss empirical implications and lessons for the design of corporate-governance arrangements.
本文探讨了企业对内部和外部治理机制的依赖,认识到选择一种工具相对于另一种工具本身就是企业治理政策的一部分。从公司的信息披露政策可以促进外部审查和收购活动的前提出发,我们表明,这些外部工具随后成为内部监督和重组的替代品。我们还认为,由于技术进步影响内部和外部信息获取的回报,其对公司披露政策的影响驱动了两种治理机制的相对有效性。具体而言,我们表明传播技术的改进导致了更多的披露和更成功的外部治理,但减少了董事会监督和内部重组。相比之下,影响信息处理的一般进展会产生相反的效果,除非它们只是提高内部处理能力,如业绩衡量和报告系统,在这种情况下,它们会增加自愿披露。我们还发现,企业的信息披露政策没有达到社会最优,从而为制定和执行最低信息披露标准的监管提供了理论依据。尽管利益分歧降低了技术进步在促进良好治理方面的总体有效性,但我们的研究结果对于引入股东与其董事会之间的代理冲突是稳健的。贯穿全文,我们讨论了公司治理安排设计的经验启示和教训。
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引用次数: 2
Auditor Fees, Abnormal Fees and Audit Quality Before and after the Sarbanes-Oxley Act 萨班斯-奥克斯利法案前后的审计师费用、异常费用和审计质量
Pub Date : 2005-02-07 DOI: 10.2139/ssrn.646681
Ariel Markelevich, Rani Hoitash, Charles A. Barragato
Our study examines fees paid to auditors for audit and non-audit services during the period 2000 to 2003. We document a statistically significant positive association between audit fees and the absolute value of performance-adjusted discretionary accruals over all years. We also identify a significant positive association between non-audit fees and discretionary accruals in years 2000 and 2001, but no such association in later years (after passage of the Sarbanes-Oxley Act). This lack of association in 2002 and 2003 may be a result of legislation that limits the types of non-auditing services that auditors can provide to audit clients. To address the potential impact of fee composition and client importance on auditor independence, we extend our empirical analysis by incorporating predictions of abnormal audit and non-audit fees. We derive abnormal fees using a fee estimation model drawn from prior literature. We find evidence consistent with the view that clients with higher abnormal fees are more apt to exert influence on their auditors, which in turn may lead to a breach in auditor independence. Overall, our results are most consistent with economic bonding being the primary determinant of auditor behavior.
我们的研究调查了2000年至2003年期间支付给审计师的审计和非审计服务费用。我们记录了统计上显著的审计费用和所有年份的业绩调整后的可自由支配应计利润的绝对值之间的正相关关系。我们还发现,在2000年和2001年,非审计费用和可自由支配的应计利润之间存在显著的正相关关系,但在随后的年份(萨班斯-奥克斯利法案通过后)没有这种关联。2002年和2003年缺乏联系可能是由于立法限制了审计师可以向审计客户提供的非审计服务的类型。为了解决费用构成和客户重要性对审计师独立性的潜在影响,我们通过纳入异常审计和非审计费用的预测来扩展我们的实证分析。我们使用从先前文献中提取的费用估计模型来推导异常费用。我们发现的证据与以下观点一致:异常费用较高的客户更容易对其审计师施加影响,从而可能导致审计师独立性的破坏。总体而言,我们的结果与经济联系是审计师行为的主要决定因素最为一致。
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引用次数: 25
How Informative is Risk Reporting? - a Review of Disclosure Models 风险报告的信息量有多大?-披露模式检讨
Pub Date : 2005-01-01 DOI: 10.2139/ssrn.640522
M. Dobler
Risk reporting is an emerging reporting challenge in Europe. Current literature assumes corporate risk reporting to be informative for its users. The purpose of this paper is to investigate in how far risk disclosures can meet the information function alleged. Embedded in frameworks of economics of information and of risk management, a substantial review and discussion of discretionary disclosure models, including cheap talk-models, provides a sound basis for assessing the information value provided by risk reports. The results are manifold. First, the review highlights strong incentives for discretion and manipulation by the manager who can use the report as a measure of handling derivative risks. These margins particularly stem from the uncertainty of availability and the non-verifiability of risk information. Second, the review exposes regulative implications to assist the information function of risk reporting. Those include the need for comparable reporting repelling a pure management approach, and for supplemental information on corporate risk management. Third, the discussion qualifies common arguments concerning risk reporting. E.g., the ex post nominal/actual value comparison is inappropriate to assess credibility, the fear of self-fulfilling prophecies does not reason opt-out clauses. However, the alerting main result of the paper is that, even in a regulated accounting environment, the information value of risk reports must not be overestimated.
风险报告在欧洲是一个新兴的报告挑战。目前的文献假设公司风险报告对其用户具有信息性。本文的目的是探讨风险披露在多大程度上能够满足所谓的信息功能。在信息经济学和风险管理框架内,对酌情披露模式,包括廉价的闲谈模式进行大量审查和讨论,为评估风险报告所提供的信息价值提供了坚实的基础。结果是多方面的。首先,该报告强调,可以利用该报告作为处理衍生品风险的衡量标准的管理人员有很强的谨慎和操纵动机。这些差额特别源于风险信息的可得性的不确定性和不可核实性。其次,该综述揭示了监管影响,以协助风险报告的信息功能。其中包括需要有可比性的报告,以抵制纯粹的管理办法,并需要关于公司风险管理的补充资料。第三,讨论限定了有关风险报告的常见论点。例如,事后名义价值/实际价值比较不适合评估可信度,对自我实现预言的恐惧并不构成选择退出条款的理由。然而,本文的主要警示结果是,即使在规范的会计环境中,也不能高估风险报告的信息价值。
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引用次数: 30
Differentiating between Arthur Andersen and the Surviving Big Four on the Basis of Auditor Quality: An Empirical Investigation of the Decision to Criminally Prosecute Arthur Andersen 基于审计师素质的安达信与幸存的四大会计师事务所的区分——对安达信被刑事起诉决定的实证调查
Pub Date : 2005-01-01 DOI: 10.2139/ssrn.639644
Ross D. Fuerman
Criminal prosecution of financial reporting-related corporate misconduct is generally acknowledged to be sometimes warranted. The decision to seek an indictment of Arthur Andersen remains controversial, however. Eisenberg and Macey (2004) posit that because the resulting increased concentration (from the Big Five to the Big Four) in the large public company auditing services market was detrimental to consumers of auditing services, criminal prosecution of Arthur Andersen can only be justified if empirical evidence is provided that indicates that Arthur Andersen was a lower quality auditor than the surviving Big Four. In my analysis of 1125 auditees of their litigation commenced 1996 through 2002, I find empirical evidence that the auditor quality of Arthur Andersen was lower than that of the surviving Big Four CPA firms. This finding suggests that there was justification for the exercise of the prosecutorial discretion of the United States Department of Justice in seeking an indictment of Arthur Andersen.
对与财务报告有关的公司不当行为提起刑事诉讼通常被认为是有必要的。然而,起诉安达信的决定仍存在争议。Eisenberg和Macey(2004)认为,由于大型上市公司审计服务市场的集中度增加(从五大会计师事务所到四大会计师事务所)对审计服务的消费者有害,因此,只有提供经验证据表明安达信的审计质量低于幸存的四大会计师事务所,才能证明对安达信的刑事起诉是合理的。在我对1996年至2002年1125名被审计单位的诉讼进行的分析中,我发现实证证据表明,安达信的审计师质量低于幸存的四大会计师事务所。这一结论表明,美国司法部在寻求起诉安达信律师事务所方面有理由行使检察自由裁量权。
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引用次数: 3
Why Do Countries Matter so Much for Corporate Governance? 为什么国家对公司治理如此重要?
Pub Date : 2004-09-01 DOI: 10.2139/ssrn.580883
Craig Doidge, G. Karolyi, René M. Stulz
This paper develops and tests a model of how country characteristics, such as legal protections for minority investors, and the level of economic and financial development, influence firms' costs and benefits in implementing measures to improve their own governance and transparency. The model focuses on an entrepreneur who needs to raise funds to finance the firm's investment opportunities and who decides whether or not to invest in better firm-level governance mechanisms to reduce agency costs. We show that, for a given level of country investor protection, the incentives to adopt better governance mechanisms at the firm level increase with a country's financial and economic development. When economic and financial development is poor, the incentives to improve firm-level governance are low because outside finance is expensive and the adoption of better governance mechanisms is expensive. Using firm-level data on international corporate governance and transparency ratings for a large sample of firms from around the world, we find evidence consistent with this prediction. Specifically, we show that (1) almost all of the variation in governance ratings across firms in less developed countries is attributable to country characteristics rather than firm characteristics typically used to explain governance choices, (2) firm characteristics explain more of the variation in governance ratings in more developed countries, and (3) access to global capital markets sharpens firm incentives for better governance, but decreases the importance of home-country legal protections of minority investors.
本文开发并测试了一个模型,该模型研究了国家特征(如对少数投资者的法律保护)以及经济和金融发展水平如何影响公司在实施改善自身治理和透明度的措施时的成本和收益。该模型关注的是一位企业家,他需要为公司的投资机会筹集资金,并决定是否投资于更好的公司治理机制,以降低代理成本。我们发现,在一定的国家投资者保护水平下,企业层面采取更好治理机制的动机会随着国家金融和经济的发展而增加。当经济和金融发展不佳时,改善公司一级治理的动机较低,因为外部融资昂贵,采用更好的治理机制也很昂贵。通过对来自世界各地的大样本公司的国际公司治理和透明度评级的公司层面数据,我们发现了与这一预测一致的证据。具体而言,我们表明:(1)欠发达国家企业治理评级的几乎所有差异都归因于国家特征,而不是通常用于解释治理选择的企业特征;(2)企业特征更多地解释了较发达国家治理评级的差异;(3)进入全球资本市场增强了企业改善治理的动机。但降低了母国法律保护少数投资者的重要性。
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引用次数: 1241
Did Regulation Fair Disclosure Level the Playing Field? Evidence from an Analysis of Changes in Trading Volume and Stock Price Reactions to Earnings Announcements 监管公平披露是否创造了公平的竞争环境?来自收益公告对交易量变化和股价反应分析的证据
Pub Date : 2004-01-22 DOI: 10.2139/ssrn.498002
Anwer S. Ahmed, Richard A. Schneible Jr.
We contribute to the literature on Regulation Fair Disclosure (FD) in three ways. First, we provide evidence on whether FD has achieved its intended effect of leveling the information playing field by examining whether differences across investors' information quality prior to earnings announcements have declined after the pronouncement of the regulation. We find strong evidence of a decline in earnings announcement period trading volume attributable to differential prior precision after FD consistent with a more level playing field. Second, we re-examine whether FD has resulted in firms reducing or chilling their information flows (disclosures) to investors. Contrary to prior work, we find that there is evidence of an overall reduction or chill in information flows after FD relative to a "cleaner" pre-FD period than the pre-FD period used in other studies. Third, we document that while the leveling effect of FD is relatively wide-spread, the chill effect is driven by (i) relatively smaller, high technology firms and (ii) relatively larger firms with high book-to-market ratios. We interpret the latter result as evidence that firms with relatively high costs of public disclosure chose to eliminate the disclosure altogether rather than broadening access to the disclosure.
我们以三种方式为监管公平披露(FD)的文献做出贡献。首先,我们提供了证据,证明FD是否达到了其预期的信息公平竞争环境的效果,通过检查投资者在收益公告之前的信息质量差异是否在该法规发布后有所下降。我们发现强有力的证据表明,在FD之后,与更公平的竞争环境相一致的差异先验精度导致收益公告期交易量下降。其次,我们重新审视FD是否导致公司减少或冷却其向投资者的信息流(披露)。与之前的工作相反,我们发现有证据表明,相对于其他研究中使用的“更干净”的FD前时期,FD后的信息流总体上减少或冷却。第三,我们证明,虽然FD的均衡效应相对广泛,但冷却效应是由(i)相对较小的高技术公司和(ii)相对较大的高账面市值比公司驱动的。我们将后一种结果解释为公开披露成本相对较高的公司选择完全取消披露而不是扩大披露的获取途径的证据。
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引用次数: 6
The Efficiency of Direct Public Offerings 直接公开募股的效率
Pub Date : 2003-10-13 DOI: 10.2139/SSRN.394304
A. Anand
One of the most powerful mechanisms by which governments and corporations can raise capital is by offering securities to the public without an underwriter through a direct public offering (DPO). Although governments at all levels have conducted DPOs, corporations generally have not adopted the DPO as a means of financing the corporation. This paper contends that DPOs can be a more efficient means of raising capital than conventional offerings. In particular, aggregate transaction costs in a DPO are likely to be lower in certain circumstances such as when: an offering is conducted over the Internet; the issuer is seasoned; investors are sophisticated; and, the offering is debt rather than equity securities. The presence of each of these factors can result in lower information costs and thereby increase the potential for an efficient DPO.
政府和公司筹集资金的最有力的机制之一是通过直接公开发行(DPO)向公众发行证券,而无需承销商。虽然各级政府都开展了DPO,但企业普遍没有将DPO作为企业融资的一种手段。本文认为,与传统发行相比,DPOs可以是一种更有效的融资方式。特别是,在某些情况下,DPO的总交易成本可能会更低,例如:通过互联网进行发行;发行人经验丰富;投资者是老练的;而且,此次发行的是债券,而不是股权证券。这些因素中的每一个的存在都可以降低信息成本,从而增加有效的业务发展办公室的潜力。
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引用次数: 4
A Revisionist View of Enron and the Sudden Death of 'May' 安然事件的修正主义观点与“梅”的突然死亡
Pub Date : 2003-06-17 DOI: 10.2139/ssrn.417261
Frank Partnoy
This chapter makes two points about the academic and regulatory reaction to Enron’s collapse. First, it argues that what emerged as the ‘conventional story’ of Enron, involving alleged fraud related to special purpose entities (SPEs), was incorrect. Instead, this chapter makes the revisionist claim that Enron was largely a story about derivatives — financial instruments such as options, futures and other contracts whose value is linked to some underlying financial instrument or index (see Box 3.1). A close analysis of the facts shows that the most prominent SPE transactions were largely irrelevant to Enron’s collapse, and that most of Enron’s deals with SPEs were arguably legal, even though disclosure of those deals was not compatible with economic reality (Partnoy, 2002).3 To the extent SPEs are relevant to understanding Enron, it is the derivatives transactions between Enron and the SPEs — not the SPEs themselves — that matter. Even more important were Enron’s derivatives trades and transactions other than those involving the SPEs. This first point about derivatives is important to the literature studying the relationship between finance and law: legal rules create incentives for parties to engage in economically equivalent unregulated transactions, and financial innovation creates incentives for parties to increase risks (to increase expected return) outside the scope of legal rules requiring disclosure.4
本章就学术界和监管机构对安然倒闭的反应提出两点看法。首先,它认为安然的“传统故事”,涉及与特殊目的实体(spe)有关的欺诈,是不正确的。相反,本章提出了一种修正主义的说法,即安然事件主要是关于衍生品的——期权、期货和其他合约等金融工具,其价值与某些基础金融工具或指数挂钩(见专栏3.1)。对事实的仔细分析表明,最突出的SPE交易在很大程度上与安然的倒闭无关,安然与SPE的大多数交易可以说是合法的,尽管这些交易的披露与经济现实不符(Partnoy, 2002)就spe与理解安然相关的程度而言,重要的是安然与spe之间的衍生品交易,而不是spe本身。更重要的是安然的衍生品交易和与spe无关的交易。关于衍生品的第一点对于研究金融与法律之间关系的文献很重要:法律规则为各方从事经济上等同的不受监管的交易创造了激励,金融创新为各方在法律规则要求披露的范围之外增加风险(以增加预期回报)创造了激励
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引用次数: 10
期刊
LSN: Securities Law: U.S. (Topic)
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