AbstractThe dynamics of the increase in volume and amount of the financial or commercial transactions during the last decennials has amplified the role of clearing and settlement systems, along with the payment ones. From the quality of these systems as a financial markets stability provider also derives the concern for the management of financial risks mainly generated by the participants in these systems. The clearing-settlement systems, operated by infrastructure entities of the capital

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... ts, ensure, within certain limits, a risk management for the incidents that could occur in the settlement activity regarding the financial transactions concluded between participants. We are going to present a methodology for determining the required collateral that must be maintained/updated by the debtor participants of a clearing-settlement system in order to ensure a robust management of the risks that could occur in the settlement operations. This methodology can be applied by any infrastructure entity of the capital market that manages collateral systems to limit the number of cases of settlement fails in financial transactions.