Discounting Revisited. Valuations under Funding Costs, Counterparty Risk and Collateralization
Looking at the valuation of a swap when funding costs and counterparty risk are neglected (i.e., when there is a unique risk free discounting curve), it is natural to ask "What is the discounting curve of a swap in the presence of funding costs, counterparty risk and/or collateralization". In this note we try to give an answer to this question. The answer depends on who you are and in general it is "There is no such thing as a unique discounting curve (for swaps)." Our approach is somewhat "axiomatic", i.e., we try to make only very few basic assumptions. We shed some light on use of own credit risk in mark-to-market valuations, giving that the mark-to-market value of a portfolio increases when the owner's credibility decreases. We present two different valuations. The first is a mark-to-market valuation which determines the liquidation value of a product. It does, buy construction, exclude any funding cost. The second is a portfolio valuation which determines the replication value of a product including funding costs. We will also consider counterparty risk. If funding costs are presents, i.e., if we value a portfolio by a replication strategy then counterparty risk and funding are tied together: - In addition to the default risk with respect to our exposure we have to consider the loss of a potential funding benefit, i.e., the impact of default on funding. - Buying protection against default has to be funded itself and we account for that. The valuation naturally attributes for wrong-way-risk (i.e., the correlation between counterparty default and counterparty exposure).
|Date of creation:||15 May 2010|
|Date of revision:||30 May 2010|
|Contact details of provider:|| Postal: Ludwigstraße 33, D-80539 Munich, Germany|
Web page: https://mpra.ub.uni-muenchen.de
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Damiano Brigo & Andrea Pallavicini & Vasileios Papatheodorou, 2009. "Bilateral counterparty risk valuation for interest-rate products: impact of volatilities and correlations," Papers 0911.3331, arXiv.org, revised Feb 2010.
When requesting a correction, please mention this item's handle: RePEc:pra:mprapa:23082. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Joachim Winter)
If references are entirely missing, you can add them using this form.