The large size factor, which concerns the demographic, economic and financial dimension, generally tends to lead to centralisation around one or a few key international currencies. It can be seen as a centripetal force, as a virtuous circle, which will tend to lead to an increasing use of the euro as an international currency. Let us consider these two factors in more detail. The first factor concerns low risk, credibility and stability. The basic factor that will determine the importance of the euro as a widely used currency in the world economy, in addition to the demographic, economic and financial dimensions of the euro area, is, without a doubt, the stability of the new currency, understood as a means to maintain the purchasing power of savings.
Stability is the basic requirement for a good currency.
It is what we at the ECB want for the euro. We want a stable euro and we are convinced that, in the long term, the euro will derive strength from its stability. The stability of the euro is the basis for the confidence in and the credibility of the ECB, without which a large international role for the euro would be unthinkable. Stability is the proof of the effectiveness of the institution. Yet in order to be credible it is not sufficient for the ECB to maintain stability.