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📋 '''Counterparty default risk module''' is one of the risk modules within the [[Definition:Solvency II | Solvency II]] [[Definition:Standard formula | standard formula]] that quantifies the potential losses an [[Definition:Insurance carrier | insurer]] could suffer if its counterparties — including [[Definition:Reinsurance | reinsurers]], intermediaries, banks, and other financial institutions — fail to honor their obligations. Unlike the [[Definition:Market risk module | market risk module]] or the [[Definition:Underwriting risk | underwriting risk]] modules, which address asset price volatility and insurance-specific exposures respectively, this module zeroes in on the credit exposure embedded in receivables, [[Definition:Reinsurance recoverables | reinsurance recoverables]], derivative positions, and cash held with depositories.

⚙️ The module classifies exposures into two broad types. Type 1 exposures are those that cannot be easily diversified and typically involve rated or collateralized counterparties — chiefly reinsurance arrangements, [[Definition:Insurance-linked securities (ILS) | securitization]] structures, cash at bank, and [[Definition:Derivative | derivatives]] used for hedging. Type 2 exposures encompass receivables from [[Definition:Policyholder | policyholders]], [[Definition:Insurance intermediary | intermediaries]], and other parties where the individual amounts may be modest but collectively material. For Type 1 exposures, the capital charge depends on the [[Definition:Credit quality step (CQS) | credit quality step]] assigned to each counterparty, the [[Definition:Loss given default (LGD) | loss given default]], and the probability of default — taking diversification effects into account through a variance-based approach. Type 2 exposures are treated more simply, with charges tied to aging buckets that reflect how long receivables have been outstanding. Insurers operating under [[Definition:Internal model | internal models]] may refine these calculations, but the standard formula provides the baseline methodology that most firms across [[Definition:European Economic Area (EEA) | EEA]] jurisdictions apply.

💡 Proper calibration of this module has tangible strategic consequences for how insurers structure their [[Definition:Reinsurance program | reinsurance programs]] and manage treasury operations. A heavy reliance on a single reinsurer with a lower credit rating, for instance, can materially inflate the [[Definition:Solvency capital requirement (SCR) | solvency capital requirement]], incentivizing diversification of ceded risk across multiple highly rated counterparties or the use of [[Definition:Collateral | collateral]] arrangements and [[Definition:Trust fund | trust funds]] to mitigate the charge. Treasurers similarly weigh the counterparty default risk capital cost when choosing banking partners for cash management. Beyond Solvency II jurisdictions, analogous concepts appear in other frameworks — the [[Definition:National Association of Insurance Commissioners (NAIC) | NAIC's]] RBC formula in the United States addresses credit risk through its C-1 component, while [[Definition:C-ROSS | C-ROSS]] in China incorporates counterparty credit risk into its quantitative pillar — though the granularity and methodology differ from the European approach.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Solvency capital requirement (SCR)]]
* [[Definition:Standard formula]]
* [[Definition:Reinsurance recoverables]]
* [[Definition:Credit quality step (CQS)]]
* [[Definition:Loss given default (LGD)]]
* [[Definition:Market risk module]]
{{Div col end}}

Definition:Counterparty default risk module - Revision history

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