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1.
    
We introduce a general model for the balance‐sheet consistent valuation of interbank claims within an interconnected financial system. Our model represents an extension of clearing models of interdependent liabilities to account for the presence of uncertainty on banks' external assets. At the same time, it also provides a natural extension of classic structural credit risk models to the case of an interconnected system. We characterize the existence and uniqueness of a valuation that maximizes individual and total equity values for all banks. We apply our model to the assessment of systemic risk and in particular for the case of stress testing. Further, we provide a fixed‐point algorithm to carry out the network valuation and the conditions for its convergence.  相似文献   

2.
    
We propose a systematic algorithmic reverse-stress testing methodology to create “worst case” scenarios for regulatory stress tests by accounting for losses that arise from distressed portfolio liquidations. First, we derive the optimal bank response for any given shock. Then, we introduce an algorithm which systematically generates scenarios that exploit the key vulnerabilities in banks' portfolio holdings and thus maximize contagion despite banks' optimal response to the shock. We apply our methodology to data of the 2016 European Banking Authority (EBA) stress test, and design worst case scenarios for the portfolio holdings of European banks at the time. Using spectral clustering techniques, we group 10,000 worst-case scenarios into twelve geographically concentrated families. Our results show that even though there is a wide range of different scenarios within these 12 families, each cluster tends to affect the same banks. An “Anna Karenina” principle of stress testing emerges: Not all stressful scenarios are alike, but every stressful scenario stresses the same banks. These findings suggest that the precise specification of a scenario is not of primal importance as long as the most vulnerable banks are targeted and sufficiently stressed. Finally, our methodology can be used to uncover the weakest links in the financial system and thereby focus supervisory attention on these, thus building a bridge between macroprudential and microprudential stress tests.  相似文献   

3.
系统性金融风险的测度方法比较   总被引:1,自引:0,他引:1  
系统性风险的一般测量方法有矩阵模型、网络模型、违约率强度模型。次贷危机中系统性风险的测量最为重要的是由信用风险导致的系统风险和从综合化经营机构传导的系统风险。对系统性风险的测量不同的方法差别很大,每种方法都有各自的缺陷。我国银行体系的系统性风险主要来源于信贷扩张风险,因而矩阵法与网络法是适合我国现实的,矩阵法已经得以初步应用,但该方法的使用仍需进一步改进。  相似文献   

4.
    
We derive rigorous asymptotic results for the magnitude of contagion in a large counterparty network and give an analytical expression for the asymptotic fraction of defaults, in terms of network characteristics. Our results extend previous studies on contagion in random graphs to inhomogeneous‐directed graphs with a given degree sequence and arbitrary distribution of weights. We introduce a criterion for the resilience of a large financial network to the insolvency of a small group of financial institutions and quantify how contagion amplifies small shocks to the network. Our results emphasize the role played by “contagious links” and show that institutions which contribute most to network instability have both large connectivity and a large fraction of contagious links. The asymptotic results show good agreement with simulations for networks with realistic sizes.  相似文献   

5.
我国银行同业拆借市场“传染”风险的实证研究   总被引:2,自引:0,他引:2  
本文使用矩阵法模型模拟我国银行同业风险头寸分布状况,估计了银行体系内的“传染”风险。结果表明:(1)银行同业资产和负债都与银行的类型和规模相关,国有银行的同业头寸占全部同业头寸的70%以上,但其同业资产占比有逐年下降趋势;(2)银行体系内风险传染的概率非常低,同时风险传染的概率及其导致的损失在逐年下降;(3)如果考虑银行预期和银行安全网对传染风险的降低作用,危机传染的风险甚至会降至零;(4)对“传染”风险的估计也存在低估的可能,同时银行同业拆借市场的“传染”风险正在从银行同业之间向银行与其他金融机构尤其是证券公司之间扩散。  相似文献   

6.
金融市场风险度量方法研究及其实证分析   总被引:1,自引:0,他引:1  
随着全球金融一体化、自由化进程加速,金融资产市场化、可交易化程度不断加深,金融市场风险逐渐成为金融机构和其他经济主体面对的主要风险之一.基于VaR方法的市场风险测量理论和技术,为测量金融市场风险提供了统一的框架和指标,成为金融市场风险管理的主流方法.在遵循VaR方法的基本框架下,利用VaR进行金融市场风险测量、管理所涉及的基本理论和实证问题进行研究和讨论,结果表明在我国的证券市场上GARCH模型能比较准确的度量市场风险.  相似文献   

7.
We consider evaluation methods for payoffs with an inherent financial risk as encountered for instance for portfolios held by pension funds and insurance companies. Pricing such payoffs in a way consistent to market prices typically involves combining actuarial techniques with methods from mathematical finance. We propose to extend standard actuarial principles by a new market‐consistent evaluation procedure which we call “two‐step market evaluation.” This procedure preserves the structure of standard evaluation techniques and has many other appealing properties. We give a complete axiomatic characterization for two‐step market evaluations. We show further that in a dynamic setting with continuous stock prices every evaluation which is time‐consistent and market‐consistent is a two‐step market evaluation. We also give characterization results and examples in terms of g‐expectations in a Brownian‐Poisson setting.  相似文献   

8.
站在全球经济大系统的高度,分析国际金融危机的实体传染机制、金融传染机制和预期传染机制。为切断危机传染的途径、防范危机传染的发生,应提高实体部门、金融机构和金融市场的抗传染能力,减少市场预期的负面影响,加强国际协调与合作等。  相似文献   

9.
论金融产品的对内开放   总被引:6,自引:0,他引:6  
金融产品是金融市场得以存在和发展的基础,是金融机构经营的基本对象,也是各类企业外源性融资的基本载体.长期来,在计划机制的影响下,政府部门主要通过对金融产品的种类、规模、价格和交易等四个环节实现对金融产品的管制,给金融发展造成一系列不良后果.强调金融产品的对内开放,就是要放松或取消政府部门对金融产品的品种、数量、价格和交易等方面的管制,变金融产品的行政性形成机制为市场化形成机制.  相似文献   

10.
企业多元化是个持续过程,度量企业多元化还须使用动态维度,多元化速度可以作为度量企业多元化的动态指标。基于沪深两市制造业上市公司的数据资料,构建多元回归模型,考察多元化速度对企业市场风险、财务风险、经营风险以及总风险的影响,得出以下结论:短期内,较快的多元化速度能降低企业市场风险、财务风险和经营风险;当经济总体处于快速发展阶段,企业应重视多元化速度所产生的正面影响,不失时机加快多元化速度,促进企业成长。  相似文献   

11.
刘晨 《商业研究》2001,(4):86-88
金融衍生工具的产生和发展,给西方资本市场注入了新的活力。目前,我国经济正处在快速发展的上升通道,经济的快速发展,必然产生对资金的极大需求,客观上要求有广阔的融资渠道与之相适应。因此,为活跃我国的资本市场,开展对金融衍生工具投资风险特征的分析和研究,是摆在我国经济工作者面前的一项迫切任务。  相似文献   

12.
    
This paper examines the impact of COVID-19 on tail risk contagion across commodity futures markets using a copula-based network method. We document a significant increase in the lower and upper tail contagiousness of commodities following the COVID-19 outbreak. Contagion shows an obvious clustering characteristic, that is, there is higher tail risk connectedness between commodities in the same category. Agricultural commodities are significantly less contagious than metals and energy commodities; soft commodities in particular can offer investors significant diversification benefits. There are several hub commodities in the contagion network, chief among them copper, which are good transmitters of shocks and should be treated with caution by investors and regulators. Although tail risk and contagiousness of individual commodities increase together during the pandemic, we find a negative cross-sectional relationship between tail risk and contagiousness, that is, commodities with high tail risk are not necessarily highly contagious and may even be less so.  相似文献   

13.
压力测试作为一般风险计量工具的重要补充,越来越受到金融监管部门和银行业的重视。文章从压力测试和反向压力测试的原理与方法出发,比较分析压力测试与在险价值(VaR)的特征性与互补性,通过示例阐明压力情景的设置方法和压力测试的操作过程,并探讨压力测试和反向压力测试在银行风险管理中的实务问题。  相似文献   

14.
基于TVP-SV-SVAR模型,分析六个不同金融子市场风险对实体经济的实时冲击效应,结合时变脉冲响应方法构建了动态权重系统性金融风险综合指数,并区分高低风险状态探讨其对实体经济的影响。结果表明,银行部门、股票市场和外部金融市场对系统性金融风险的贡献较大;基于对实体经济冲击视角的动态权重系统性金融风险综合指数与样本期内实际金融经济事件的发展趋势一致;不同状态下系统性金融风险对经济增长的冲击效应不同:短期来看,高风险点系统性金融风险抑制经济增长,低风险点系统性金融风险促进经济增长;长期来看,系统性金融风险在高低状态下对经济增长均有负向冲击效应。研究结论对于防范和化解系统性金融风险的宏观审慎政策制定具有重要的参考意义。  相似文献   

15.
本文利用Diks和Panchenko(2006)改进的非线性Granger因果检验方法研究了次贷危机和欧债危机期间全球主要股市间的联动性,并基于此探讨了两次危机期间中国股市在全球股市风险传染网络中的角色定位问题。研究结果表明:(1)次贷危机期间,中国股市作为风险接收者,起着风险承担的作用。欧债危机期间,中国股市风险承担作用明显减弱,并存在一定程度的风险溢出。在两次危机的全球股市风险传染网络中,美国股市始终居于主导地位。(2)对比两次金融危机,次贷危机期间全球主要股市间风险传染程度更高。滚动窗口法进一步验证了本文结论的稳健性。  相似文献   

16.
银行危机传导机制的理论分析   总被引:1,自引:0,他引:1  
了解传导机制可以为阻断危机蔓延提供科学依据,本文从危机传导的基本内涵入手,分析了银行危机传导的诱因——银行脆弱性,提出金融脆弱性是银行危机传导的根本原因。本文在银行危机传导传统定义的基础上重新界定了该概念,分析了银行危机传导的途径,认为金融脆弱性是银行危机传导的重要媒介,防止银行危机传导的根本措施是提高银行的稳健性。  相似文献   

17.
宏观经济变量冲击与我国银行间市场风险传染   总被引:1,自引:0,他引:1  
虽然宏观经济变量对我国银行同业拆借市场的影响比较小,但随着时间的推移,风险传染规模呈扩大趋势,同时银行风险的溢出效应比较明显。本文模型结构和模拟结果显示的四个特征表明,监管当局在防范我国银行风险传染方面不仅要关注宏观经济变量冲击的负面影响和银行在同业拆借市场中的具体交易情况,还需要关注银行风险的传染源和风险溢出效应。监管机构可以通过建立银行偿付水平对应于不同宏观经济变量的敏感系数,时刻关注宏观经济的异常波动对银行偿付能力的影响。  相似文献   

18.
刘明明  高岩  吕毅 《商业研究》2006,(21):174-177
在金融市场中进行资产配置关键是合理估算资产的相关风险和收益情形,根据投资者状况构建有效的资产配置模型。研究资产配置的基础知识,并就风险度量的方法进行比较分析;考察投资者个人状况,分别针对一般理性投资者和悲观投资者,构建一般资产配置模型和极大极小模型。  相似文献   

19.
    
Propensity to plan is an indicator of financial capability that contributes to consumer financial well‐being. Previous research has shown that propensity to plan is positively related to objective financial well‐being but little research was found to examine its association with subjective financial well‐being. Using financial satisfaction to measure subjective financial well‐being, this study addressed this research gap and had three objectives: (1) to explore factors associated with propensity to plan, (2) to examine the association between propensity to plan and financial capability factors, and (3) to examine the association between propensity to plan and financial satisfaction. Using data from the 2015 US National Financial Capability Study, the results showed socioeconomic differences in propensity to plan. The results suggest consumers with more economic resources had higher scores in propensity to plan. In addition, propensity to plan was positively associated with financial capability factors, suggesting financial planning is a desirable financial behavior. Finally, propensity to plan made unique contributions to financial satisfaction after controlling for socioeconomic and other financial capability factors.  相似文献   

20.
金融市场主要包括长期资本市场与短期资金市场。在我国 ,股票市场作为长期资本市场的组成部分其发展取得了长足进步 ,而票据市场作为短期资金市场的组成部分其发展还不十分完善。研究票据市场的现状、结构、主体、评级机构等方面对我国票据市场的发展具有重大意义。  相似文献   

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