The Effect of Business Risk on Corporate Capital Structure: Theory and Evidence

Under corporate and personal taxation, we demonstrate that the relation between optimal debt level and business risk is roughly U-shaped. This result follows from the fact that the tax liability is an option portfolio that is long in the corporate tax option and short in the personal tax option. Therefore, the net effect of a change in business risk on the optimal debt level depends upon the relative magnitudes of the resultant marginal changes in the values of these two options. Results of empirical tests offer support for the predicted U-shaped relationship.     

人力资本投资:风险与风险规避

自美国经济学家发现人力资本对经济发展的巨大贡献以来,人们的注意力主要集中于阐述人力资本投资的高收益性,而人力资本投资的风险性却很少被论及。实现有效的人力资本投资,必须建立在充分认识人力资本投资特点的基础上,而规避人力资本投资风险的根本途径是明晰人力资本产权和建立人力资本市场。     

Risk Management, Risk Capital, and the Cost of Capital

In a recent JACF article, Prakash Shimpi proposed a new way of calculating a firm's cost of capital that incorporated a concept of "risk capital" as well as operational capital. The premise of the Shimpi approach was that purchasing hedging instruments effectively "releases" equity that is no longer needed to ensure the firm's creditworthiness.
This article shows that Shimpi's cost of capital calculations incorporate this released equity in a misleading way, exaggerating the capital base and underestimating its true cost. It also demonstrates how conventional cost of capital approaches can be modified to integrate risk capital, thereby avoiding such distortions and accurately representing the cost of capital of a company with a policy of active risk management.     

After VaR: The Theory, Estimation, and Insurance Applications of Quantile-Based Risk Measures

We discuss a number of quantile‐based risk measures (QBRMs) that have recently been developed in the financial risk and actuarial/insurance literatures. The measures considered include the Value‐at‐Risk (VaR), coherent risk measures, spectral risk measures, and distortion risk measures. We discuss and compare the properties of these different measures, and point out that the VaR is seriously flawed. We then discuss how QBRMs can be estimated, and discuss some of the many ways they might be applied to insurance risk problems. These applications are typically very complex, and this complexity means that the most appropriate estimation method will often be some form of stochastic simulation.     

Dynamic Capital Structure Choice: Theory and Tests

This paper develops a model of dynamic capital structure choice in the presence of recapitalization costs. The theory provides the optimal dynamic recapitalization policy as a function of firm-specific characteristics. We find that even small recapitalization costs lead to wide swings in a firm's debt ratio over time. Rather than static leverage measures, we use the observed debt ratio range of a firm as an empirical measure of capital structure relevance. The results of empirical tests relating firms' debt ratio ranges to firm-specific features strongly support the theoretical model of relevant capital structure choice in a dynamic setting.     

基于经济资本的我国保险公司投资风险限额配置研究

投资风险限额管理是保险公司对投资风险进行管理的重要手段,是保险公司建立有效风险管理体系不可或缺的组成部分。保险公司投资风险限额管理主要包括投资风险限额配置、风险限额监控和风险限额动态调整三个环节,其中风险限额配置是整个风险限额管理流程的基础。运用GARCH模型和GJR模型,并结合Copula理论,探讨了投资风险限额配置的方法,通过实证分析证实投资组合之间存在分散化效应,各投资风险限额之和大于总风险限额,并得出投资风险限额优化配置模型调整资产配置,可以显著提高保险公司投资绩效。     

首航节能“欺诈门”风险乍观

市场最大的风险是信用风险,如果首航节能"商业欺诈"属实,也必将会被市场处于极刑。电厂直接空冷系统供应商北京首航艾启威节能技术股份有限公司(以下简称"首航节能")自2012年3月上市,短短半年时间,已卷入多起负面事件。近期更深陷"商业诈骗"漩涡,虽然公司发布澄清公告,然后其股价     

资产定价:理论演进及应用研究

资产定价理论是现代金融理论的核心.本文通过对资产定价理论的综述,揭示了从传统资产定价理论到行为资产定价理论的演进脉络,并对各理论及相应模型的内涵和应用进行了描述,最后对传统资产定价理论和行为资产定价理论进行了比较,以期对我国金融理论和实践的发展有所帮助.     

资本结构影响因素：理论和证据

国外研究表明，资产结构、公司规模、非债务税盾、成长性、财务困境成本、投资额、独特性、产生内部资源能力等因素影响资本结构的选择。实证分析显示，除了财务困境成本因素外，影响国外公司的特征因素几乎也可以同样的方式影响中国上市公司的资本结构。     

Bankruptcy Risk and Optimal Capital Structure

This study finds shortcomings in empirical tests of the capital structure irrelevance hypothesis. The alternative hypothesis is that firms choose value maximizing mixes of debt and equity on account of bankruptcy costs and the tax deductibility of interest payments. Based upon the cross-sectional implications of the tax shelter-bankruptcy cost hypothesis, an alternative test of the irrelevance hypothesis is performed. The test examines the relationship between failure rates and leverage ratios for 36 lines of business. The results are inconsistent with the irrelevance hypothesis.     

Distortion Risk Measures and Economic Capital

Abstract

To provide incentive for active risk management, it is argued that a sound coherent distortion risk measure should preserve some higher degree stop-loss orders, at least the degree-three convex order. Such risk measures are called tail-preserving risk measures. It is shown that, under some common axioms and other plausible conditions, a tail-preserving coherent distortion risk measure identifies necessarily with the Wang right-tail measure or the expected value measure. This main result is applied to derive an optimal economic capital formula.     

汇丰银行风险与资本管理

汇丰银行(HSBC)是老牌国际活跃银行之一,2007年资产规模达2.35万亿美元,在英国权威杂志<银行家>"2008金融品牌500强"排名中名列榜首,成为全球最具价值的银行品牌.     

Liquidity Risk and Venture Capital Finance

This article provides theory and evidence in support of the proposition that venture capitalists adjust their investment decisions according to liquidity conditions on IPO exit markets. We refer to technological risk as a choice variable in terms of the characteristics of the entrepreneurial firm in which the venture capitalist invests, and liquidity risk as the current and expected future external exit market conditions. We show that in times of expected illiquidity of exit markets (high liquidity risk), venture capitalists invest proportionately more in new high-tech and early-stage projects (high technology risk) in order to postpone exit requirements. When exit markets are liquid, venture capitalists rush to exit by investing more in later-stage projects. We further provide complementary evidence that shows that conditions of low liquidity risk give rise to less syndication. Our theory and supporting empirical results facilitate a unifying theme that links related research on illiquidity in private equity.     

Risk in Banking and Capital Regulation

This paper investigates the role of bank capital regulation in risk control. It is known that banks choose portfolios of higher risk because of inefficiently priced deposit insurance. Bank capital regulation is a way to redress this bias toward risk. Utilizing the mean-variance model, the following results are shown: (a) the use of simple capital ratios in regulation is an ineffective means to bound the insolvency risk of banks; (b) as a solution to problems of the capital ratio regulation, the “theoretically correct” risk weights under the risk-based capital plan are explicitly derived; and (c) the “theoretically correct” risk weights are restrictions on asset composition, which alters the optimal portfolio choice of banking firms.