Through the MOC (marginal opportunity cost) analyzed, model of reclaimed wastewater has been given, and expatiate the meaning of the parts of this model;

对边际机会成本深入分析，建立再生水资源的边际机会成本模型，阐述其各要素内涵；

youdao

What is marginal method? Please discuss the meaning of this method in management economics? (40%)?

什么是边际法？简述边际分析法在管理经济学中的意义？ (40%)？

youdao

Much of the development cost of a new drug is paid by the US market (yes, this is why you pay higher prices than most Europeans do) meaning that as long as drugs in, say, Greece are sold at above the marginal cost of production they still make a profit.

FORBES: Drug Dealing: Free Markets and Price Fixing Just Don't Work Together