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Estimating the Value-at-Risk from High-frequency Data
Data augmentation Gibbs sampler Quadratic variation Time changed Brownian motion
2016/1/27
We present two alternative approaches for estimating VaR. Both approaches are based on the observation that each trading day is very diverse and we can observe K different phases of the trading day. W...
Capital and Value of Risk Transfer:Presented at Actuarial Approach for Financial Risks (AFIR) Colloquium,Boston,MA,November
Capital Risk and Uncertainty
2015/5/13
Capital and Value of Risk Transfer: Presented at Actuarial Approach for Financial Risks (AFIR) Colloquium,Boston,MA,November.
The availability of credit varies over the business cycle through shifts in the leverage of financial intermediaries. Empirically, we find that intermediary leverage is negatively aligned ...
Forecasting Value-at-Risk with Time-Varying Variance, Skewness and Kurtosis in an Exponential Weighted Moving Average Framework
exponential weighted moving average time -varying higher moments Cornish-Fisher expansion Gram -Charlier density risk management Value-at -Risk
2012/9/14
This paper provides an insight to the time-varying dynamics of the shape of the distribution of financial return series by proposing an exponential weighted moving average model that joint...
The availability of credit varies over the business cycle through shifts in the
leverage of financial intermediaries. Empirically, we find that intermediary leverage is negatively aligned...
Transitional credit modelling and its relationship to market value at risk: an Australian sectoral perspective
Conditional value at risk Credit risk Industries Transition matrix Value at risk
2011/8/26
Internal credit risk modelling is important for banks for the calculation of capital adequacy in terms of the Basel Accords, and for the management of sectoral exposure. We examine Credit Value at Ris...
Conditional Value-at-Risk Constraint and Loss Aversion Utility Functions
Risk measures Utility functions Nonexpected utility theory Maxmin Conditional Value-at-Risk Loss aversion
2010/11/1
We provide an economic interpretation of the practice consisting in incorporating risk measures as constraints in a classic expected return maximization problem. For what we call the infimum of expect...
A duality approach to the worst case value at risk for a sum of dependent random variables with known covariances
aggregation of risks Value at Risk dependent risks risk management
2010/11/3
We propose an approach to the aggregation of risks which is based on estimation of simple quantities (such as covariances) associated to a vector of dependent random variables, and which avoids the us...