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Calibration of structural and reduced-form recovery models
Credit risk Loss distribution Reduced–form models Structural models Value at Risk Expected Tail Loss Stochastic processes
2011/3/23
In recent years research on credit risk modelling has mainly focused on default probabilities. Recovery rates are usually modelled independently, quite often they are even assumed constant.
Dependence of defaults and recoveries in structural credit risk models
Credit risk Loss distribution Value at Risk Expected Tail Loss Stochastic
2011/3/23
The current research on credit risk is primarily focused on modeling default probabilities. Recovery rates are often treated as an afterthought; they are modeled independently, in many cases they are ...
Statistical Inference for Time-changed Brownian Motion Credit Risk Models
Credit risk structural model rst passage problem Levy process fast Fourier transform credit default spread maximum likelihood estimation
2011/3/23
We consider structural credit modeling in the important special case where the log-leverage ratio of the firm is a time-changed Brownian motion (TCBM) with the time-change taken to be an independent i...
Precautionary Measures for Credit Risk Management in Jump Models
Credit risk management Double exponential jump diffusion Spectrally negative L´ evy processes
2010/10/19
Sustaining efficiency and stability by properly controlling the equity to asset ratio is one of the most important and difficult challenges in bank management. Due to unexpected and abrupt decline of...
Indifference of Defaultable Bonds with Stochastic Intensity models
Credit Risk model Cox Process HJB equations
2010/10/19
The utility-based pricing of defaultable bonds in the case of stochastic intensity models of default risk is discussed. The Hamilton-Jacobi- Bellman (HJB) equations for the value functions is derived....
Credit Calibration with Structural Models: The Lehman case and Equity Swaps under Counterparty Risk
Credit Default Swaps StructuralModels Black Cox Model, Calibration
2010/11/3
In this paper we develop structural first passage models (AT1P and SBTV)with time-varying volatility and characterized by high tractability, moving from the original work of Brigo and Tarenghi (2004, ...
Credit models and the crisis, or: how I learned to stop worrying and love the CDOs
Credit Crisis Credit Derivatives Gaussian Copula Model Implied Correla-tion Base Correlation Compound Correlation Implied Copula
2010/11/3
We follow a long path for Credit Derivatives and Collateralized Debt Obliga-tions (CDOs) in particular, from the introduction of the Gaussian copula model and the related implied correlations to the i...
Correlation breakdown, copula credit default models and arbitrage
Correlation breakdown copula credit default models arbitrage
2010/11/2
The recent ‘correlation breakdown’ in the modeling of credit default swaps,in which model correlations had to exceed 100% in order to reproduce market prices of supersenior tranches, is analyzed and a...