Optimal Central Counterparty Risk Management

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Executive Summary

In order to protect themselves against the potential losses in case of a participant's default and to Contain systemic risk, Central Counterparties (CCPs) need to maintain sufficient financial resources. Typically, these financial resources consist of margin requirements and contributions to a collective default fund. Based on a stylized model of CCP risk management, this paper analyzes the main factors affecting the trade-off between margins and default fund. The optimal balance between these two risk management instruments is found to depend on collateral costs, participants' default probability, and the extent to which margin requirements are associated with risk-mitigating incentives.

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