对我国可转换公司债券特别向下修正条款的异议

可转换公司债券实际上是一个债券和一个转股期权的混合体,因此它具有两个基本属性,即债券性和期权性。可转换债券属于公司债券的一种,可以说是公司债的特殊形式,它的债性体现在它定期支付票息,到     

分红下的可转债转股价修正条款的利益转移效应

本文研究了分红下的可转债转股价修正条款的利益转移效应。实证检验发现了该条款的实质是把老股东的利益转移给了可转债投资者,可见市场对该条款的内涵没有充分认知。     

可转债发行预案对股价的影响——基于不同市场环境下的分析

对沪深两市2000～2010年间174家公司董事会发布可转债融资信息导致的股价波动进行了研究,研究表明在宣告日当天及次日股价存在显著性的负效应;在不同的市场环境下投资者的行为是不同的,在熊市和调整市环境下,宣告当日的股价存在显著的负效应,而在牛市环境下,不存在显著性非零的异常收益。回归分析结果支持压力假说理论而不支持信号理论的解释。研究结果反映了我国证券市场上,投资者的行为除了受到事件本身的影响外,更受到市场环境的因素影响。     

可转债上市公司调整转股价格的行为及影响分析

摘要：可转债是兼有股票期权和债券性质的复合型金融衍生品。为促使投资者尽快将可转债转换为股票,上市公司的常见做法是向下调整转股价格。因此,研究上市公司调整转股价格的行为及其影响十分必要。本文首先分析了现有可转债上市公司近五年调整转股价格的行为及其原因,并将其行为分为自然调整和主动向下修正两类;然后着重研究上市公司主动向下修正转股价格的行为对转股比例、股票价格、可转债价格j者的影响,最后得出相应结论。     

可转债上市及转股日的异常收益探讨

本文对可转债上市及转股日前后异常收益分析表明，上市初期累计异常收益与现金流因子成显著正相关，与营运因子成非显著负相关。本文认为，上市初期可转债累计异常收益部分由可转债本身因素来决定，部分由市场的非有效性与心理因素来决定。而转换期前后的累计异常收益完全是由市场的非有效性与心理因素决定的。在转换期前后，公司基本面信息与转债条款信息已在定价中得到反映，转换期前后累计异常收益完全与这些信息无关，可转债价格的异常变化也与这些因素无关。     

基于B-S模型的可转债发行定价折价现象实证研究——以唐钢转债为例

本文运用Black-Scholes模型,通过对唐钢转债的发行定价进行实证研究,分析可转债发行定价中出现折价现象的原因。     

基于二叉树的可转债定价研究

本文以GARCH（1,1）模型来估计股价的波动率．以Matlab工程软件为工具．用二叉树法对我国8支可特债的定价进行了实证研究,同时考虑了可特债内嵌的多种期极。研究姑暴表明,我国可特债的价格被低估。这与我国证券市场的实际情况有关。本文还提出了一种计算单个期权价值的新思路,     

可转债转股价格下调的股价效应

一、引言可转债,即可转换债券,是企业融资的宠儿。企业发行可转债,通常是为了延迟当期低价股权融资。而转股价格向下修正条款,提高了债券转股的可能性,。转股价格向下修正条款,指的是这样一种条款:当股价表现不佳时,一般是股价连续低于转股价一定水平,该条款允许发行公司在约定时间内将转股价格向下修正为原转股价格的70%～80%。每次股东大会根据     

从融资视角探讨可转换债券问题

2006年5月8日,中国证监会发布了《上市公司证券发行管理办法》,其中对可转换债券的规定更合理、更完善,明确规定了上市公司可以公开发行可分离交易的可转换公司债券,改变了可转债品种的单一性.可转债市场在经历股改带来的转股冲击之后,将再度迎来扩容高潮.毫无疑问,可转换债券现已成为我国资本市场不可或缺的投融资工具,但从实践来看,上市公司利用可转换债券融资中仍存在的一些问题严重阻碍了证券市场的发展.因此,从上市公司融资的角度通过对可转换债券快速发展及在发展中存在的相关问题的研究、提出完善可转换债券融资方式的一些建议与对策很有必要.     

A Re-examination of the Case for Accounting Separately for the Debt and Equity Features of Convertible Debt

The case for accounting separately for the debt and equity features of a convertible bond is based on two main assumptions: convertible debt can be decomposed into two, or more, fundamental financial instruments, and a convertible bond has the same economic substance as a bond with a detachable warrant. These assumptions are re-examined in this paper where it is shown that it is generally not possible to decompose a convertible bond into fundamental financial instruments, nor is it possible to form a package of a bond and a detachable warrant that replicates the character of the convertible bond.     

Earnings Management and the Long-Run Underperformance of Firms Following Convertible Bond Offers

Abstract:  This paper examines whether the long-run underperformance of convertible bond issuers can be explained by earnings management, as reflected in discretionary current accruals around the time of the offer. Consistent with the earnings management hypothesis, we find that convertible issuers who adjust their discretionary current accruals to report higher net income in the issue year will generally experience inferior operating and stock return performance over the five-year post-issue period. Our findings indicate that there is some temporary overvaluation of convertible issuers by the stock market, but that the resultant disappointed investors will subsequently correct their valuation errors. The similarity of our results to those reported within the prior literature on initial public offers (IPOs) and seasoned equity offers (SEOs) suggests that the earnings management hypothesis is not unique to stock offers, but that it actually extends to convertible bond offers.     

A Finite Difference Approach to the Valuation of Path Dependent Life Insurance Liabilities

This paper sets up a model for the valuation of traditional participating life insurance policies. These claims are characterized by their explicit interest rate guarantees and by various embedded option elements, such as bonus and surrender options. Owing to the structure of these contracts, the theory of contingent claims pricing is a particularly well-suited framework for the analysis of their valuation.The eventual benefits (or pay-offs) from the contracts considered crucially depend on the history of returns on the insurance company's assets during the contract period. This path-dependence prohibits the derivation of closed-form valuation formulas but we demonstrate that the dimensionality of the problem can be reduced to allow for the development and implementation of a finite difference algorithm for fast and accurate numerical evaluation of the contracts. We also demonstrate how the fundamental financial model can be extended to allow for mortality risk and we provide a wide range of numerical pricing results.     

可转换债券投资价值及在股权分置中的投资机会分析

可转换债券是我国仅有的与A股市场相关的金融衍生产品,但其发展深受市场环境的影响,直到2002年才起步。2002年至2004年中,可转换债券表现出了较强的抵御风险的能力和一定的投资价值。在2005年监管层决定彻底解决股权分置问题的背景下,可转债的投资可能面临着新的投资机会。     

可转债融资对上市公司市场价值的长期影响及原因分析

本文从可转债融资对公司买进持有超额收益率和对经营指标的影响两方面分析了可转债融资对公司价值的长期影响,并从盈余管理的角度对产生影响的原因进行了实证分析。实证结果表明,发行可转债后公司股价和经营业绩出现显著的下滑,其原因在于上市公司在可转债发行当年普遍利用盈余管理来提高公司利润。尽管存在这样的负面影响,可转债融资仍然具有很大优势,我国监管部门和上市公司应积极采取措施,促进可转债市场的健康发展。     

Valuation of American options under the CGMY model

In the present work, we concentrate on the analytical study of American options under the CGMY process. The decomposition formula of the American option and the integral equation for the optimal-exercise boundary are established in explicit forms. Moreover, an analytical approximation formula is obtained for the American value. This approximation is valid when time to maturity is either very short or very long. Numerical simulations are provided for European options, optimal-exercise prices and approximate values for American options.     

Valuation of a Credit Swap of the Basket Type

This article provides a simple model to value a credit swap ofthe basket type. Unlike the previous literature, we considerthe joint survival probability of occurrence times of creditevents in terms of stochastic intensity processes under the assumptionof conditional independence. Based on the joint survival probability,such a credit swap can be valued under the risk-neutral valuationframework. Assuming that the default intensity processes followthe extended Vasicek model with a correlation structure, an analyticexpression of the valuation formula is derived. Some numericalexample is given to demonstrate the usefulness of our model.     

Credit Events and the Valuation of Credit Derivatives of Basket Type

Thispaper provides a simple model for valuing a credit derivativewhose payoff depends on the identity (or identities) of the first(or first two) to occur of a given list of credit events, suchas defaults. The joint survival probability of occurrence timesof credit events is formulated in terms of stochastic intensityprocesses under the assumption of conditional independence. Basedon the joint survival probability, we can easily obtain the pricingformulas of such credit derivatives under the risk-neutral valuationframework. When the default intensity processes follow the extendedVasicek model, closed-form solutions of the pricing formulasare given.     

Determinants of Actuarial Valuation Method Changes for Pension Funding and Reporting: Evidence from the UK

This study examines various factors that potentially explain cross‐sectional variations in UK corporate managerial discretion to switch towards a market‐based actuarial pension valuation method for pension funding and reporting purposes. Evidence is based on accounting, actuarial and share market data for an industry‐matched pair sample of 90 UK firms. Consistent with our hypotheses we find that companies have a greater propensity to switch actuarial methods if they use lower discount rates, lower flow funding ratios and sponsor larger pension plans in the pre‐switch valuation year. These findings are consistent with the traditional perspective, which implies that UK corporate switching decisions are explained by characteristics of their defined benefit pension funds. The results run contrary to the findings of earlier US based studies that find that such choices can be explained from an alternative corporate financial perspective.