High marginal tax rates may act as a disincentive to working longer hours.

边际税率过高也许会抑制加班时间。

《柯林斯英汉双解大词典》

Falls in marginal tax rates in America since the 1970s have made it all the more profitable to work longer.

自20世纪70年代以来，美国边际税率的下降使得延长工作时间更有利可图。

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The nine with the highest marginal tax rates saw outflows averaging 2.2%.

而边际税率最高的9各州平均外迁移率为2.2%。

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High marginal tax rates with inflation worsening their effect through bracket creep did their part.

FORBES: The Monetary Foundations Of Economic Prosperity

The argument that high marginal tax rates will discourage economic growth strikes me as pretty compelling.

FORBES: CRS Refuses To Disclose Who Requested Withdrawal Of Report On Marginal Rates

Adding on the full 12.4% would effectively take top marginal tax rates above 50%.

ECONOMIST: The economy: the solutions