Another example is how the ECB has no dual mandate. Its only mandate is to control inflation. It has no mandate to limit unemployment. As the Euro crisis began

Another example is how the ECB has no dual mandate. Its only mandate is to control inflation. It has no mandate to limit unemployment. As the Euro crisis began to cause political instability they've backed off a little, but they took their single mandate very seriously and stuck to their "no fiscal stimulus" guns for a very long time during the crisis.