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Margining Systems For An Energy Exchange: a copula based approach - Couverture souple

Keppeler, Marcus

 
9783639346268: Margining Systems For An Energy Exchange: a copula based approach

Synopsis

A clearing houses acting as central counterparty collects collaterals via margin calls to cover a portfolio's market risk. Over the past few years exchange trading volumes in commodity trading and in particular for energy related products have grown massively. At the same time the margin models applied by clearing houses have hardly changed. The margin systems SPAN and TIMS are based on simple calculation methodologies from the 1970s but are still by far the most used systems by clearing houses. This work introduces the concept of copula in which marginal distributions of the single risk factors can be modelled separately from their multivariate dependence structure. It compares a T-copula model and a variation of it, the grouped T-copula, with a Gaussian copula and the TIMS system and proves the superiority of the T-copula models.

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Présentation de l'éditeur

A clearing houses acting as central counterparty collects collaterals via margin calls to cover a portfolio's market risk. Over the past few years exchange trading volumes in commodity trading and in particular for energy related products have grown massively. At the same time the margin models applied by clearing houses have hardly changed. The margin systems SPAN and TIMS are based on simple calculation methodologies from the 1970s but are still by far the most used systems by clearing houses. This work introduces the concept of copula in which marginal distributions of the single risk factors can be modelled separately from their multivariate dependence structure. It compares a T-copula model and a variation of it, the grouped T-copula, with a Gaussian copula and the TIMS system and proves the superiority of the T-copula models.

Biographie de l'auteur

Marcus Keppeler was born in 1980 in Ravensburg, Germany. He graduated from the University of Konstanz in 2006 with a diploma in Mathematical Finance. He is currently working as a Risk Analyst in London, United Kingdom.

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