2004年-ECB欧洲央行_Risk_mitigation_methods_in_Eurosystem_credit_operations_9页_249kb

Summary of Risk Mitigation Methods in Eurosystem Credit Operations

Core Content

The Eurosystem's credit operations, particularly reverse transactions, are subject to various financial risks. To mitigate these risks, the Eurosystem relies on a comprehensive framework that includes the requirement of adequate collateral and a set of risk control measures. These tools are designed to ensure that the Eurosystem can recover the full amount of its liquidity in the event of a counterparty default, while also allowing counterparties to efficiently use eligible assets.

Main Instruments of Eurosystem Credit Operations

The Eurosystem employs several instruments for monetary policy implementation, including:

• Reverse transactions (repurchase agreements and collateralised loans)
• Outright transactions
• Debt certificate issuance
• Foreign exchange swaps
• Fixed-term deposit collection

Among these, liquidity-providing reverse transactions have been the most significant. These operations involve the Eurosystem buying assets from counterparties under repurchase agreements or collateralised loans, with the assets serving as collateral for the provided liquidity.

Types of Risks in Reverse Transactions

Three primary types of risks are associated with reverse transactions:

1. Credit Risk: The risk that the counterparty will default on its obligations.
2. Market Risk: The risk of a decline in the market value of the collateral due to exogenous factors.
3. Liquidity Risk: The risk of financial loss due to the difficulty in liquidating the collateral quickly without affecting its price.

These risks can only occur if the counterparty defaults, and they are addressed through the Eurosystem's collateral and risk control frameworks.

Collateral Framework and Credit Quality Assessment

The Eurosystem's collateral framework is based on the statutory requirement of Article 18.1 of the ESCB Statute, which mandates that credit operations be based on adequate collateral. The framework includes:

• Tier One and Tier Two Assets: Tier One assets are marketable and meet uniform euro area-wide eligibility criteria. Tier Two assets are additional and include those of particular importance to national financial markets.
• Credit Quality Assessment: The Eurosystem evaluates the creditworthiness of eligible assets using agency ratings, NCBs' own credit assessment systems, and institutional criteria. It excludes assets issued or guaranteed by the counterparty or entities with close financial links to it.
• Monitoring: The credit quality of eligible assets is continuously monitored to ensure it meets the minimum financial soundness standards.

Valuation of Collateral

Collateral is regularly valued to ensure the Eurosystem is appropriately covered. The valuation process includes:

• Daily Valuation: For marketable assets, the reference price is used, typically the lowest price quoted on the reference market.
• Mark-to-Model Approach: For non-marketable assets, a theoretical valuation model based on present-value discounting of future cash flows is used.
• Valuation Haircuts: These are percentage deductions from the market value of the collateral to account for market and liquidity risk. The Eurosystem revised its haircut schedules to better reflect liquidity characteristics and introduced new liquidity categories.

Risk Control Measures

The Eurosystem applies the following risk control measures to its collateral:

• Valuation Haircuts: Cover market moves during the time required for the realisation of the asset, not the entire life of the transaction.
• Variation Margins: Ensure that the collateral value remains sufficient over the life of the transaction. If the value falls below a certain level, a margin call is issued, requiring the counterparty to provide additional assets or cash.
• Other Potential Measures: These include initial margins, limits in relation to issuers or guarantors, additional guarantees, and exclusion of certain assets. However, some of these are not currently in use.

Conclusion

The Eurosystem's risk mitigation in liquidity-providing reverse operations is built on three pillars:

• High-Quality Collateral: Ensuring that the assets used as collateral are of high credit quality.
• Accurate and Regular Valuation: Daily valuation of collateral to maintain coverage against credit risk.
• Effective Risk Control Measures: Applying measures such as valuation haircuts and variation margins to address market and liquidity risks.

These elements work together to protect the Eurosystem against financial risks while maintaining the efficiency and transparency of its monetary policy operations.