The phrase "a single mandate" is correct and usable in written English.
It can be used in contexts where you are referring to a specific directive or authority given to an individual or organization.
Example: "The committee was given a single mandate to improve community engagement within the next year."
Alternatives: "a sole directive" or "a unified mandate".
We don't know, of course, how the Fed would have behaved under a single mandate.
A centralized model is beneficial for defining a single mandate across the institution and applying resources based on specific needs across the various business and product lines.
In particular, he argued that over the last 20 years, the Fed has controlled inflation more successfully than central banks that operated under a single mandate.
Yet a central bank with a single mandate would be all too likely to point to the stability of prices and declare its work done.
Add to this the likelihood that we need some inflation — and more than 2 percent — to avoid persistent liquidity traps, and you can see that a single mandate could well have disastrous effects.
There are times when the dual mandate seems contradictory, but this is not one of them, and it is unlikely the Fed would change course if it had a single mandate.
Thanks to his straight talk about crime and Chechnya, Lebed won a single-mandate seat in the Duma, but the K.R.O.
So the near future of this country, the next year or two, is going to be a question of how those two mandates work things out together, not how we assume that Obama has a blank check just for his single mandate".
But every single mandate of ours is a mandate of peace and equality, of social and national justice.
It is time to focus on a single, national mandate to have all children reading at grade level.
As Mr. Rosengren put it, over the last two decades, "the U.S. has a tighter inflation range and a broader unemployment range than many other countries with a single inflation mandate".
