我国信用风险缓释市场发展与创新

随着我国融资市场快速发展,信用风险管理面临严峻挑战,信用风险缓释市场亟待发展创新.然而,受金融危机影响,我国金融从业人员在观念、认识和态度上对信用风险缓释工具(CRM)存在诸多不明.本文通过解析CRM市场结构、CDS定价机制,以及中国CRM市场发展对策,帮助金融从业人员正确认识CRM市场功能,提升CRM市场参与能力,为...     

An Empirical Analysis of the Dynamic Relation between Investment-Grade Bonds and Credit Default Swaps

We test the theoretical equivalence of credit default swap (CDS) prices and credit spreads derived by Duffie (1999) , finding support for the parity relation as an equilibrium condition. We also find two forms of deviation from parity. First, for three firms, CDS prices are substantially higher than credit spreads for long periods of time, arising from combinations of imperfections in the contract specification of CDSs and measurement errors in computing the credit spread. Second, we find short‐lived deviations from parity for all other companies due to a lead for CDS prices over credit spreads in the price discovery process.     

Credit default swap prices as risk indicators of listed German banks

This paper explores empirically the usefulness of credit default swap (CDS) prices as market indicators. The sample of reference entities consists of large, internationally active German banks and the observation period covers 3 years. By analysing the explanatory power of three risk sources: idiosyncratic credit risk, systematic credit risk and liquidity risk, we gain important insights into modeling the dynamics of CDS spreads. The impact of systematic risk, for example, has three components; one is related to the overall state of the economy, another related to the risk of the internationally active banking sector, and the third is an unobservable systematic factor. Default probabilities, inferred from a tractable reduced form model for CDS spreads, are compared with expected default frequencies from the Moody’s KMV model. The results lend empirical support to the hypothesis that structural models can be less informative than reduced-form models of CDS spreads in the case of banks with major investment banking activities as the leverage loses explanatory power. Although the CDS market appears to have matured over the observation period, during certain periods premiums for liquidity risk can increase substantially thus limiting the value of CDS spreads as market indicators. We conclude that equity prices and CDS premia should be considered together to fully exploit the information content of both market indicators and to mitigate their respective drawbacks.

The Information Content of Ratings: An Analysis of Australian Credit Default Swap Spreads

We examine the information content of Australian credit rating announcements by measuring the abnormal changes in credit default swap (CDS) spreads. CDS spreads provide a direct view of credit quality and thus should impound information quickly when investors receive new credit risk related information via a rating event. Using an event study methodology, we show that watch downs and rating upgrades contain valuable information even after controlling for sources of contamination. We find that watch downs elicit statistically significant market reactions, while subsequent downgrades are anticipated. Upgrades are associated with a significant but small abnormal reduction in CDS spreads, whereas watch ups appear to contain no new information.     

Credit default swaps and the market for sovereign debt

In this paper, we analyze the determinants and effects of credit default swap (CDS) trading initiation in the sovereign bond market. CDS trading initiation is associated with a 30–150 basis point reduction in sovereign bond yields, with greater yield reductions accruing to higher default risk economies. For countries with high default risk, rated B or lower by Standard and Poor’s, CDS initiation is also associated with significant price efficiency benefits in the underlying market. CDS trading initiation is more likely following increases in local equity index volatility, index spreads for regional and global CDS markets, or depreciation of the local currency relative to the US dollar, and decreases in a country’s ability to service foreign debt. Our results are robust to selection bias controls based on these factors.     

Credit derivatives and stock return synchronicity

The role of credit default swaps (CDS) in the 2008 financial crisis has been widely debated among regulators, investors, and researchers. While CDS were blamed for destabilizing the financial system, they remain effective tools for hedging credit risk, especially for major banks, and produce positive informational externalities to market participants. This paper examines whether the introduction of CDS enhances the amount of firm-specific information impounded in stock prices. We use stock return synchronicity to measure the amount of firm-specific information reflected in stock prices, with more firm-specific information being associated with a lower level of synchronicity. We find that a firm’s stock return synchronicity decreases after the commencement of CDS trading. This finding is robust to different model specifications, synchronicity measures, and endogeneity controlling methodologies. Furthermore, the decrease in stock return synchronicity is more pronounced for CDS firms with higher credit risk. Overall, our evidence supports the positive role of CDS in improving informativeness of stock prices.     

改革开放后中国信贷市场的二元变迁路径分析

本文通过信贷扩张分析,表明我国信贷弹性波动较大、信贷密度增长较快、信贷深度显著增强;把信贷市场发展分为三个阶段,将1997年命名为中国信贷市场"二元转化年".从信贷集权与分权角度深入探讨了信贷市场变迁动力,明确提出了金融能量守恒的定律;通过计量模型证明二元信贷与二元经济高度相关.本文建议大力发展绿色信贷市场,开创金融机构的"蓝海战略",创新多种信贷产品,强化信贷有效竞争.     

Credit derivatives and loan pricing

This paper examines the relation between the new markets for credit default swaps (CDS) and banks’ pricing of syndicated loans to US corporates. We find that changes in CDS spreads have a significantly positive coefficient and explain about 25% of subsequent monthly changes in aggregate loan spreads during 2000–2005. Moreover, when compared to traditional explanatory factors, they turn out to be the dominant determinant of loan spreads. In particular, they explain loan rates much better than same rated bonds. This suggests that CDS prices contain, beyond general credit risk, to a substantial extent information relevant for bank lending. We also find that, over time, new information from CDS markets is faster incorporated into loans, but information from other markets is not. Overall, our results indicate that the markets for CDS have gained an important role for banks.     

发展县域消费信贷市场的对策建议

消费不足是当前困扰我国经济发展的一个主要问题,在县域经济中,消费不足的问题尤为突出,而县域消费信贷市场不发达,在一定程度上抑制了居民即时消费.本文以琼海市为例,就县域消费信贷发展中存在的问题进行了分析,提出了发展县域消费信贷市场的对策建议.     

后危机时代信用衍生市场的发展方向

信用衍生市场能够促进信用风险的定价、分散和转移,并有助于金融稳定。遗憾的是,此次金融危机的发生,导致各方对信用衍生品产生很多误解。本文试图对此作一澄清,通过分析后危机时代信用衍生市场的新特点和改革路径,找出其未来的发展方向,并对发展中国的信用衍生市场提出建议。     

金融科技、最优银行业市场结构与小微企业信贷供给

小微企业融资问题一直备受各界关注,金融科技的发展或许会带来新变化,但相关研究尚不充分。本文构建包含贷款技术和银行业市场结构的理论模型,提出金融科技、银行业市场结构与小微企业信贷供给的关系假说。在此基础上,手工收集百度搜索指数数据,建立与银行小微企业信贷业务相关的各省金融科技发展水平指数,并利用2011-2018年省级面板数据进行相应的实证检验。研究结果表明:针对整个银行业体系,金融科技有助于促进银行小微企业信贷供给;银行业市场结构与小微企业信贷供给之间呈现"倒U"型关系,即推动银行增加小微企业信贷供给时,存在最优银行业市场结构;与此同时,金融科技发展水平将影响银行业最优市场结构,金融科技发展水平越高,促进小微企业信贷供给的最优银行业竞争程度越高。本文的研究结论能够进一步丰富小微企业信贷理论,补充中国经验证据,为促进银行小微企业信贷供给提供重要启示。     

The network structure of the CDS market and its determinants

This paper analyses the network structure of the credit default swap (CDS) market and its determinants, using a unique dataset of bilateral notional exposures on 642 financial and sovereign reference entities. We find that the CDS network is centred around 14 major dealers, exhibits a “small world” structure and a scale-free degree distribution. A large share of investors are net CDS buyers, implying that total credit risk exposure is fairly concentrated. Consistent with the theoretical literature on the use of CDS, the debt volume outstanding and its structure (maturity and collateralization), the CDS spread volatility and market beta, as well as the type (sovereign/financial) of the underlying bond are statistically significantly related—with expected signs—to structural characteristics of the CDS market.     

信用风险缓释工具的经济意义及其发展建议

信用风险缓释工具(CRM)是中国金融体系通过金融创新、以市场手段管理信用风险的重要里程碑。与欧美国家的同类产品CDS相比,CRM有其独特性。本文首先介绍CRM及其交易,然后从金融创新、银行稳健性、债券市场发展、信用共担体系完善等方面阐述了CRM在推动中国金融市场深化方面的积极作用。最后,本文针对CRM市场发展中暴露出来的市场主体同质化、产品设计单一、定价机制不健全、监管问题提出了改进意见。     

Counterparty credit risk and the credit default swap market

Counterparty credit risk has become one of the highest-profile risks facing participants in the financial markets. Despite this, relatively little is known about how counterparty credit risk is actually priced. We examine this issue using an extensive proprietary data set of contemporaneous CDS transaction prices and quotes by 14 different CDS dealers selling credit protection on the same underlying firm. This unique cross-sectional data set allows us to identify directly how dealers' credit risk affects the prices of these controversial credit derivatives. We find that counterparty credit risk is priced in the CDS market. The magnitude of the effect, however, is vanishingly small and is consistent with a market structure in which participants require collateralization of swap liabilities by counterparties.     

Pricing Sovereign Credit Risk of Poland: Evidence from the CDS Market

We analyze the market assessment of sovereign credit risk using a reduced-form model to price the credit default swap (CDS) spreads, thus enabling us to derive values for the probability of default (PD) and loss given default (LGD) from the quotes of sovereign CDS contracts. We compare different specifications of the models allowing for both fixed and time-varying LGD, and we use these values to analyze the sovereign credit risk of Polish debt throughout the period of a global financial crisis. Our results suggest the presence of a low LGD and a relatively high PD during a recent financial crisis.     

影响信用评级市场发展与评级产品应用的几个问题

我国信用评级市场发展和评级产品应用受制于法律法规不完善、评级管理不统一、评级需求失衡、制度机制不协调等因素。应加快信用评级市场管理的法制建设,明确信用评级市场的地位与作用,理顺监管体制和管理机制,加强对信用评级产品应用的政策扶持,提高信用评级市场自我发展能力。     

国家主权信用评级质量检验方法研究

国家主权信用评级对当今国际经济和金融运行有着极为重要的影响力。但是,与其地位不相符的是,评级机构的评级结果事后多次被证明准确性和前瞻性较差。事先缺乏预警而事后大幅降级,甚至对加剧危机起到了推波助澜的作用。本文从国家主权信用评级质量的检验方法入手,系统分析了违约率和迁移率等传统方法在检验评级结果起到的作用及其不足,给出了检验评级质量的一般方法,并验证了该评级检验方法的科学性和准确性。     

信用卡、风险应对与城镇家庭股市参与

信用卡市场的发展有利于家庭平滑消费,但是否会影响家庭的投资决策尚缺少事实检验。基于中国家庭金融调查(CHFS)2011和2013年的调查数据,本文首次检验了信用卡对城镇家庭股市投资的影响。研究发现:(1)控制家庭财富、融资渠道、社会资本等特征,持有信用卡在边际上促进了家庭的股市参与率,股市投资额取决于信用额度。(2)中国信用卡市场的发展,并未像流动性约束理论预测的可以平滑消费,反而刺激了家庭风险性资产的配置,最终提高了储蓄率。原因在于,中国家庭更多地将信用卡作为应对未来短期突发性风险的金融工具,从而在当期将更多资产配置在风险资产上,以实现资本积累。使用信用卡数目、信用额度等多种衡量方式,并采用工具变量法(IV)和面板数据固定效应模型等解决内生性问题后,该结论稳健。该研究有助于理解信用卡在中国家庭投资决策的作用,并为流动性约束或有限股市参与假说提供中国经验。     

多层次市场中场外CDS工具发展与监管

券商经营活动中,在信用、市场规则、融资者与投资者等议题上面临特殊困境,核心体现在多层次资本市场建设的重要环节之一:即信用风险转移和分散功能难以实现,信用债券市场发展迟缓。基于对已有信用风险缓释工具现状的分析,券商从实务角度出发构建了涉及场外CDS业务市场准入、做市商交易、风险控制、会计、产品线、定价和业务监管等一系列制度。CDS具有不可替代的功能,并在海外成熟的多层次资本市场中与场内股票、债券交易一并构成基础性市场。盲目对CDS的抵触对我国多层次资本市场建设并无益处。     

Market and Model Credit Default Swap Spreads: Mind the Gap!

Structural models of default establish a relation across the fair values of various asset classes (equity, bonds, credit derivatives) referring to the same company. In most circumstances such relation is verified in practice, as different financial assets tend to move in the same direction at similar speed. However, occasional deviations from the theoretical fair values occur, especially in times of financial turmoil. Understanding how the dynamics of the theoretical fair values of various assets compares to that of their market values is crucial to a number of market participants. This paper investigates whether a popular structural model, the CreditGrades approach proposed by Finger (2002) , Stamicar and Finger (2005) , succeeds in explaining the dynamic relation between equity/option variables and Credit Default Swap (CDS) premia at individual company level. We find that CDS model spreads display a significant correlation with CDS market spreads. However, the gap between the two is time varying and widens substantially in times of financial turbulence. The analysis of the gap dynamics reveals that this is partly due to episodes of decoupling between equity and credit markets, and partly due to shortcomings of the model. Finally, we observe that model spreads tend to predict market spreads.