Barroalso estimates tax multipliers based on the effects on GDP of changes inaverage marginal tax rates from federal and state and local income taxes, andsocial security payroll taxes.

Barro从联邦政、州以及各地方的所得税和社会保障工资税得出平均边际税率 * ，他也基于平均边际税率的变化对GDP的影响而估算出税收乘数（tax multipliers）。

youdao

Then why did the outbreak of this widely anticipated civil war in a strategically marginal country convince Washington that America's security was in danger?

那么在这个战略边缘国家发生令世人广泛关注的内战是什么是华盛顿感到了美国安全受到了威胁呢？

youdao

To optimize the operation of power system, it is necessary to establish security constrained economic dispatch(SCED) and introduce locational marginal pricing(LMP)method.

为了实现电力市场的优化运营，关键是要建立安全约束经济调度与节点边际定价机制。

youdao

"The benefits in terms of ultimately adding to the safety and security of the American people would be marginal and questionable.

VOA: standard.2009.10.15

Dissenters from the conventional wisdom - the "hardliners" - argued that arms control would at best make a marginal contribution to security.

CENTERFORSECURITYPOLICY: Of Lions, Lambs, and Ostriches

But if early signs are anything to go by, a new policy is emerging which, if not exactly hawkish in the pugnacious sense, is more unilateralist than outsiders are accustomed to, stepping away from multilateral and regional entanglements that are deemed marginal to America's own security needs.

ECONOMIST: Working out the world

Current promised Social Security benefits are weak and marginal compared to what would be gained through a lifetime of real savings and investment.

FORBES: A Personal Account Option For Social Security