If nominal GDP fell below the target growth rate in one year, central Banks would seek to make up for that in subsequent years - in effect, following a path for overall nominal spending.

当NGDP在某年低于目标增长率时，中央银行会在接下来数年想法弥补：实际上就是通过控制名义支出以达到目标。

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To start with probably the least important aspect of all this, I am surprised by how little emotion has been sparked by Mr Carney's remarks, that there might be a case for replacing narrow inflation as a target with nominal GDP target, or the cash value of annual economic output.

BBC: Can the Bank of England hit any target?

Various rules have been proposed, including a price-level rule (zero inflation), an inflation target rule (2 percent inflation), a nominal GDP target, and a Taylor rule designed to control the growth of nominal income by controlling the monetary base.

FORBES: The Limits Of Monetary Policy Call For Moral, Sound Money

The more puzzling self-inflicted wound was Mr. Carney's decision to float the idea that the BOE might drop its inflation target in favor of a nominal GDP target.

WSJ: Some of the Carney Gloss Is Coming Off