Because the demand curve slopes downward, the marginal revenue curve lies below it.

因为需求弧口曲线向下，所以边缘收益曲线在它下面。

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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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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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