(55)While it is desirable to base the calculation of the exposure value on that provided for the purposes of own funds requirements, it is appropriate to adopt rules for the monitoring of large exposures without applying risk weightings or degrees of risk. Moreover, the credit risk mitigation techniques applied in the solvency regime were designed with the assumption of a well-diversified credit risk. In the case of large exposures dealing with single name concentration risk, credit risk is not well-diversified. The effects of those techniques should therefore be subject to prudential safeguards. In this context, it is necessary to provide for an effective recovery of credit protection for the purposes of large exposures.