That's where the marginal cost and the demand thing, demand lines intersect.

应该是在边际成本,与需求曲线的交点上

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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

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The quantity where demand and marginal costs equal.

需求曲线和边际成本的交点叫什么

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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