不对称管制是指电信监管机构根据特定的区分标准对不同电信运营商，采取不同管制方式。
但是，由于分部信息披露的外部性、分布不对称性等，不能完全依赖自愿披露，必须对分部信息披露进行适度的管制。
However, because of the externality and asymmetry of segment information, we cannot completely relay on the voluntary disclosure, but must regulate the segment information disclosure properly.
本文研究了在信息不对称条件下，自来水行业的管制部门如何设计激励机制实现有效管制的问题。
The thesis studies how should the regulation sector of water industry design incentive mechanism in order to maximize social welfare under information asymmetry.
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