家庭教育投资积极、学习勤奋则边际成本递减、边际收益递增；

If family education investment is initiative and the family studies diligence, marginal cost decreases and marginal income increases by degrees.

在技术水平和其他要素的投入不变的情况下，边际收益是先递增后递减。

With the technological and other key elements remaining the same, their marginal income is increasing first and then decreasing gradually.

厂商边际收益

Marginal benefit to steel firm

使虚增报告盈余的边际收益等于其边际成本。

And the marginal benefits of reporting higher earnings must equal to its marginal costs.

画出垄断者的需求曲线、边际收益曲线和边际成本曲线。

Draw the demand, marginal-revenue, and marginal-cost curves for a monopolist.

提高证明标准, 边际收益递减,边际成本递增.

With the raising of proof criterion, the marginal revenue increases and the marginal cost decreases.

画出垄断者的需求曲线 、 边际收益曲线和边际成本曲线.

Draw the demand, marginal - revenue, and marginal - cost curves for a monopolist.

被称为边际收益 。

The term is known as marginal revenue.

文章认为，个人教育投资的均衡条件是边际成本等于边际收益。

Condition of personal education investment is that marginal cost equals to marginal revenue.

文章认为,个人教育投资的均衡条件是边际成本等于边际收益.

The equilibrium condition of personal education investment is that marginal cost equals to marginal revenue.