The consequent decline in the marginal cost curves may be consistent with a positively sloped quasi-supply curve of the individual firm as in Figures 5.7(a) and (b);

由此导致的边际成本曲线下移，可能与图5.7所示的单个厂商准供给曲线为正斜率的情况相一致；

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The difference of incentive intensity is affected by the factor of technology spillover, the marginal cost curve of enterprises' environmental management and the slope of marginal revenue curve.

激励强度差异受到技术外溢系数、企业环境管理边际成本曲线和边际收益曲线斜率的影响。

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Figure 5.11 illustrates the same point for the case in which external economies affecting marginal cost curves are sufficiently important to yield a negatively sloping supply curve to the industry.

影响边际成本曲线的外部经济，对于得出一条负斜率的行业供给曲线是非常重要的——图5.11即以这种情况说明上面相同的观点。

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It's where the marginal cost and the demand curve intersects.

边际成本与需求曲线的交点处

耶鲁公开课 - 博弈论课程节选

Let me finish the picture here; here's my demand curve, here's my constant marginal cost at c, and I want to use this picture on the left now to figure out what the monopoly quantity is.

先把图画完,这条是需求曲线,这个是边际成本常量c,下面我们通过左边的图像,来找出垄断产量

耶鲁公开课 - 博弈论课程节选

They all face roughly the same (world) demand curve, but each country will have a different marginal cost for getting the oil out.

FORBES: The Global Oil Addiction: An Interactive Graphic