Solving a dynamic programming problem of a central planner can prove that the competitive equilibrium and the social optimum is identical.

随后又从中央计划者角度求解一个动态最优化问题，发现社会最优和竞争性均衡是一致的。

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You can prove that, in fact, if you were writing a contract, if there was a social planner you'd work more.

事实上你会发现,如果有书面合同,或者有个规划师的话人们会超常发挥

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The gist of the story is that Jill Kelley, a social planner in Tampa started getting approximately 10 menacing emails from an anonymous harasser.

FORBES: Paula Broadwell's Internet Trail

John Allen, who has been nominated to be the new NATO supreme allied commander for Europe, had accumulated a staggering 20, 000-30, 000 pages of documents, most of them emails with Jill Kelley, a social planner who organized events at MacDill Air Force Base in Tampa, Fla.

FORBES: David Petraeus: Everything You Need To Know About The Scandal

Barbara Collins, a retired conference planner living in Woodside, was doing extra work to supplement her Social Security.

WSJ: Extra Work for Little Pay