The Constitution sets our mandate in this way for a simple reason: it is an expression of a public good. When we attain that public good, it helps us to reach the kind of economic growth we want. It does not mean that achieving our mandate alone will  Page 1 of 11  necessarily generate that outcome.
But it is necessary for achieving it. Many other policies and behaviours play similar and necessary, but not sufficient, roles. Having been given a mandate, the central bank needs to achieve it. This requires setting out an operationally relevant policy target and ensuring that the institution has the powers to achieve it.