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供给曲线 S(q) = 20 + q/2 ,均衡价格 p^* = 40 。计算生产者剩余 PS = integrate from 0 to Q^* of [p^* - S(q)] dq 。
供给曲线 S(q) = 20 + q/2 ,均衡价格 p^* = 40 。计算生产者剩余 PS = integrate from 0 to Q^* of [p^* - S(q)] dq 。
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