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

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 impact on the environment of pressing ahead (and on energy security, for that matter) would be marginal at best.

继续推进管道建设对环境（就此而言，对能源安全）的影响最多也是微乎其微。

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