Climate Change Valuation Adjustment (CCVA) Using Parameterized Climate Change Impacts

We introduce Climate Change Valuation Adjustment (CCVA) to capture climate change impacts on XVA that are currently invisible assuming typical market practice. To discuss such impacts on XVA from changes to instantaneous hazard rates we introduce a flexible and expressive parameterization to capture the path of this impact to climate change endpoints, and transition effects. Finally we provide quantification of examples of typical interest where there is risk of economic stress from sea level change up to 2101, and from transformations of business models. We find that even with the slowest possible uniform approach to a climate change impact in 2101 there can still be significant XVA impacts on interest rate swaps of 20 years or more maturity. Transformation effects on XVA are strongly dependent on timing and duration of business model transformation. Using a parameterized approach enables discussion with stakeholders of economic impacts on XVA, whatever the details behind the climate impact.