Principle of maximum social income require to estimate the revenue and cost of each project of government decision, then choose the one that has maximum net revenue.

最大社会收益原则要求估计公共决策每一方案的收益和成本，选择社会净收益最大的方案。

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If the proof criterion's marginal social revenue equated its marginal social cost, the social net revenue would reach its maximum, and the proof criterion would be most appropriate.

当证明标准的边际社会收益等于边际社会成本时，社会净收益实现了最大化，证明标准达到了最佳程度。

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It would have also resulted in economic chaos, devastating communities across the country and costing governments tens of billions of dollars in additional social safety net benefits and lost revenue.

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Democrats led by Obama want to preserve the social safety net of entitlements and insist on including more tax revenue --especially from the wealthiest Americans -- in any deficit reduction package.

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Republicans seek to shrink the size of government to lower costs, while Democrats argue some new tax revenue is necessary to maintain the social safety net that protects the elderly, disabled and impoverished.

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