但是同期的欧洲地区，这些部门生产率下降了9%。
Yet in the euro area productivity in these sectors fell by 9% over the same period.
经济学家们认为潜在的商业部门生产率增长现在大约是2.5%（或者整个经济的大约是2.2%）。
The economists reckon underlying business productivity growth is now around 2.5% (or around 2.2% in the overall economy).
Gordon先生通过计算得出当商业部门生产率增长的潜在比率正减缓至低于2.5%时，整个经济体的生产率的潜在比率则在2.1%。
Mr Gordon sees the underlying rate of business productivity growth slowing to below 2.5% which, by his calculations, implies a rate of 2.1% for the overall economy.
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