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Love and Death : A Freund Model with Frailty

Gouriéroux, Christian; Lu, Yang - Centre de Recherche en Économie et Statistique … - 2013

dependence is usually taken into account in the actuarial literature by introducing an Archimedean copula. This practice implies …

Persistent link: https://www.econbiz.de/10010857712

Shock on Variable or Shock on Distribution with Application to Stress-Tests

Dubecq, Simon; Gouriéroux, Christian - Centre de Recherche en Économie et Statistique … - 2012

The shocks on a stochastic system can be defined by means of either distribution, or variable. We relate these approaches and provide the link between the global and local effects of both types of shocks. These methodologies are used to perform stress-tests on the portfolio of financial...

Persistent link: https://www.econbiz.de/10010548475

A Asymptotic Total Variation Test for Copulas

Fermanian, Jean-David; Radulovic, Dragan; Wegkamp, Marten - Centre de Recherche en Économie et Statistique … - 2013

We propose a new goodness-of-fit test for copulas, based on empirical copula processes and nonparametric bootstrap … counterparts. The standard Kolmogorov-Smirnov type test for copulas that takes the supremum of the empirical copula process indexed … by orthants is extended by test statistics based on the supremum of the empirical copula process indexed by families of …

Persistent link: https://www.econbiz.de/10010747006

The Supermodular Stochastic Ordering

Meyer, Margaret A; Strulovici, Bruno - C.E.P.R. Discussion Papers - 2013

In many economic applications involving comparisons of multivariate distributions, supermodularity of an objective function is a natural property for capturing a preference for greater interdependence. One multivariate distribution dominates another according to the `supermodular stochastic...

Persistent link: https://www.econbiz.de/10011083601

Commodity and Equity Markets: Some Stylized Facts from a Copula Approach

Delatte, Anne-Laure; Lopez, Claude - C.E.P.R. Discussion Papers - 2013

In this paper, we propose to identify the dependence structure existing between the returns of equity and commodity futures and its evolution through the past 20 years. The key point is that we do not do not impose the dependence structure but let the data select it. To do so, we model the...

Persistent link: https://www.econbiz.de/10011084009

Are banks too big to fail or too big to save? International evidence from equity prices and CDS spreads

Demirguc-Kunt, Asli; Huizinga, Harry - C.E.P.R. Discussion Papers - 2010

Deteriorating public finances around the world raise doubts about countries’ abilities to bail out their largest banks. For an international sample of banks, this paper investigates the impact of government indebtedness and deficits on bank stock prices and CDS spreads. Overall, bank stock...

Persistent link: https://www.econbiz.de/10008550325

An Evaluation Framework for Alternative VaR Models

Bams, Dennis; Lehnert, Thorsten; Wolff, Christian C - C.E.P.R. Discussion Papers - 2002

In this Paper we investigate the ability of different models to produce useful VaR-estimates for exchange rate positions. We make a distinction between models that include sophisticated tail properties and models that do not. The former type of models often leads to too extreme VaR-estimates,...

Persistent link: https://www.econbiz.de/10005123557

Market Liquidity and Funding Liquidity

Brunnermeier, Markus K; Pedersen, Lasse Heje - C.E.P.R. Discussion Papers - 2007

We provide a model that links an asset's market liquidity - i.e., the ease with which it is traded - and traders' funding liquidity - i.e., the ease with which they can obtain funding. Traders provide market liquidity, and their ability to do so depends on their availability of funding....

Persistent link: https://www.econbiz.de/10005067436

Model Averaging and Value-at-Risk Based Evaluation of Large Multi-Asset Volatility Models for Risk Management

Pesaran, M Hashem; Zaffaroni, Paolo - C.E.P.R. Discussion Papers - 2005

This paper considers the problem of model uncertainty in the case of multi-asset volatility models and discusses the use of model averaging techniques as a way of dealing with the risk of inadvertently using false models in portfolio management. Evaluation of volatility models is then considered...

Persistent link: https://www.econbiz.de/10005067642

Funding Liquidity Risk from A Regulatory Perspective

Gouriéroux, Christian; Heam, Jean-Cyprien - Centre de Recherche en Économie et Statistique … - 2013

In the Basel regulation the required capital of a financial institution is based on conditional measures of the risk of its future equity value such as Value-at-Risk, or Expected Shortfall. In Basel 2 the uncertainty on this equity value is captured by means of changes in asset prices (market...

Persistent link: https://www.econbiz.de/10010747020