The third part introduce and propose economics' and institutional theory about waste charge;
第三章介绍有关垃圾收费的经济学理论和制度设计的理论；
Theory of X-efficiency and the new institutional economics are basis for our study.
本文以X-效率理论和综合评价方法为理论基础。
The new economic history is an important part of the new institutional economics.
研究经济法学史 ，恰当确定分期标准和界点是非常重要的。
The new economic history is an important part of the new institutional economics.
研究经济法学史 ，恰当确定分期标准和界点是非常重要的。
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