Across the OECD the average top marginal rate fell by nearly 11 percentage points.

经济合作与发展组织内部平均的最高边际税率下降了近11个百分点。

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Ranked by this"effective marginal tax rate", America lags behind by less, though its rate of24% is well above the OECD average of 20%.

如果以这种“有效边际税率”衡量，美国的税务状况则显得稍好一些，为24％，仅高过经合组织平均水平4个百分点。

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While the top personal income tax rate in California is now 10.55%, even the average income earner pays a marginal income tax rate on the next dollar earned of 9.3%.

FORBES: The Anachronism Of State Income Taxes

Note that closing loopholes may well raise the average corporate rate, on which Democrats and liberals have focused, but it is the marginal tax rate that drives the economy, as discussed above.

FORBES: The GOP Jobs Plan Vs. Obama's

Add in state taxes of 5 percent (on average in many states), and the top marginal tax rate is 50 percent.

FORBES: Raise Taxes To Kill A Recovery And Nail The Coffin Shut