Answer:
a central bank operating with discretion can achieve the same outcome as the central bank committed to a fixed rule of zero inflation if it follows a consistent and credible policy that prioritizes achieving and maintaining price stability over other goals. This means that the central bank must be transparent and communicate its actions and intentions clearly, while also being responsive to changes in the economy and financial markets. Additionally, the government must provide the central bank with the necessary independence and resources to carry out its mandate effectively.