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分类依据与纠错

AI 根据所提供的论文材料归类:摘要以因子模型解释公司债信用利差,并将利差变化联系于相对国债的超额收益,直接涉及金融因子与资产定价。

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代码、数据与补充材料

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关注这篇论文的作者
Eduardo Rossi

欧元公司债券的风险因子

研究问题
欧元计价公司债券的信用利差变化由哪些市场因素和个体因素驱动,未观测共同因素在其中有多大解释作用?
方法与思路
作者采用受信用风险结构方法启发的异质面板与多因子误差模型,以两步程序估计未观测因素,分析三年月度收益率。
材料陈述的贡献
摘要称,可观测与未观测因素共同驱动利差变化;未观测共同因子作用显著,但无法将其识别为市场因子。
阅读关注点
应核对两步估计的一致性条件、共同与个体效应的区分,以及未观测因子的经济解释和与美国证据的可比性。
阅读边界
仅依据所给Crossref摘要;债券样本构成、因子数量和效应大小未说明,共同因子显著不等于其经济来源已确定。

原文摘要

SUMMARY This paper investigates the determinants of credit spread changes in euro‐denominated bonds. We adopt a factor model framework, inspired by the credit risk structural approach, as credit spread changes can be easily viewed as an excess return on corporate bonds over Treasury bonds. We try to assess the relative importance of market and idiosyncratic factors as an explanation of movements in credit spreads. We adopt a heterogeneous panel with a multifactor error model and propose a two‐step estimation procedure, which yields consistent estimates of unobserved factors. The analysis is carried out with a panel of monthly redemption yields on a set of corporate bonds for a time span of 3 years. Our results suggest that the euro corporate market is driven by observable and unobservable factors. The unobservable factors are identified through a consistent estimation of individual and common observable effects. The empirical results suggest that an unobserved common factor has a significant role in explaining the systematic changes in credit spreads. However, in contrast to evidence regarding US credit spread changes, it cannot be identified as a market factor. Copyright © 2011 John Wiley & Sons, Ltd.

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