目前这种政策的边际效益在递减。

At present, the side benefit of this policy is descending.

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针对政策评价方法研究中的关键问题——如何进行政策的费用效益分析展开具体研究。

The most important problem is how to carry out the cost benefit analysis of policy.

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如果成功，新的烟草政策可以产生效益。

If successful, the new tobacco policy could pay dividends.

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为了使维系成本发挥最大效益，运营商必须采用差异化的维系政策。

In order to maintain the most cost-effective, operators must maintain a difference of policy.

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为了使维系成本发挥最大效益，运营商必须采用差异化的维系政策。

In order to maintain the most cost-effective, operators must maintain a difference of policy.

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