Among these companies the average effective tax rate between 2008-10 was only 18.5%.

这这些公司当中，2008至2010年间的实际税率仅有18.5%。

youdao

What is the effective tax rate? Why might it be different from the statutory tax rate?

什么是有效税率？为什么它可能与法定的税率不同？

youdao

Switzerland's effective tax rate on the fairly well-off is one of the lowest in the world.

瑞士则是在中高收入水平有效税率最低的国家之一。

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"Our plan is based on the belief that fast-acting tax relief is the most effective way to put our economy back on track,"

VOA: standard.2009.10.03

Another way to tell the story is by looking at average effective tax rates.

FORBES: Is Obama Tax Hiker In Chief? Not Exactly

Mitt Romney's father, George Romney, paid an effective tax rate of nearly 37% in 1967.

CNN: Mitt Romney vs. stubborn facts

The answer is that decisions are not made at the effective tax rate.

FORBES: Lower Taxes, Fewer Deductions: Are Romney and Ryan Dodging the Specifics?