The legal and political obligation of an independent institution to properly explain and justify its decisions to the citizens and their elected representatives, thereby making it responsible for fulfilling its objectives. The ECB is accountable to the European citizens and, more formally, to the European Parliament.
The day-count convention applied for the calculation of interest on a credit, implying that the interest is calculated over the actual number of calendar days over which the credit is extended, on the basis of a 360-day year. This day-count convention is applied in Eurosystem monetary policy operations. See also
A provision allowing counterparties to fulfil their reserve requirements on the basis of their average reserve holdings over the maintenance period. The averaging provision contributes to the stabilisation of money market interest rates by giving institutions an incentive to smooth the effects of temporary liquidity fluctuations. The Eurosystem's minimum reserve system allows for averaging.