Reserve requirement : the requirement for institutions to hold minimum reserves with the central bank . Within the minimum reserve framework of the Euro ­ system , the reserve requirement of a credit institution is calculated by multi ­ plying the reserve ratio for each category of items in the reserve base with the amount of those items on the institution 's balance sheet .
Sistema di regolamento lordo [ gross settlement system ] : sistema di trasferi ­ mento in cui il regolamento di fondi o il trasferimento di titoli avviene sulla base della singola istruzione .