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设成本函数C(Q)=-Q^3+20Q^2,则其边际(导数)成本函数C’(Q)=?
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A firm's cost of production is C(Q) = Q^3 - 20Q^2 + 125Q. The firm's problem is to choose the value of Q greaterthanorequalto 0 that maximizes its profit. For parts (a)-(k), assume that the demand function for a firm's product is Q(P) = 50-P/10. Calculate the firm's inverse demand function. Calculate the firm's marginal and average cost ...
A perfectly competitive firm has the cost function C(q) = q^3 − 20q^2 + 110q and sells output at market price p. A) Find the average cost and marginal cost curves, AC(q) and MC(q). B) What is the minimum efficient scale of production? What is the lowest market price for which this firm will choose to stay in business? C) Plot the average and
其理由在于:(1)中单个厂商的产量q=20,价格p=600,它们都分别大于行业长期均衡时单个厂商在lac曲线最低点生产的产量q=10和面对的p=100。 换言之,(1)中的单个厂商利润最大化的产量和价格组合发生在LAC曲线最
For the cost function C(Q) = 100 + 2Q + 3Q2, the average fixed cost of producing 2 units of output is. 50. Suppose the cost function is C(Q) = 50 + Q − 10Q2 + 2Q3. What is the marginal cost of producing 10 units? $401. Economies of scale exist whenever long-run average costs.
成本函数(cost function)指在技术水平和要素价格不变的条件下,成本与产出之间的相互关系。成本理论主要分析成本函数。成本函数和成本方程不同,成本函数说的是成本和产量之间的关系,成本方程说的是成本等于投入要素价格的总和,如果投入的是劳动L和资本K,其价格为PL和PK,则成本方程是C ...
C(Q)= f+aQ+bQ^2+cQ^3 (Where a,b,c, and f are constants. Note that f represents fixed costs. Marginal cost function. MC(Q)=a+2bQ+3cQ^2. Long run costs. In the long run all costs are variable, because the manager is free to adjust the levels of all inputs. Long-run average cost curve.
图5-3 要素2为劣质生产要素 (b)如果技术是规模报酬不变的,则条件要素需求可写成 ,这里 是生产1单位产出的条件要素需求。 因此,将条件要素需求函数对产出 求导得 ,则不存在劣质要素。
长期总成本:指厂商 长期中 在 各种产量水平上的最低总成本。(成本是产出的函数) 也就是求c = f(q),已知 c = wl+rk①,q = f(l,k)② 问题是求c如何用q来表示。长期成本函数中k不再是常数。 根据前文所讲扩…
我们通常需要使用数学工具,如微积分,来求解。对于二次成本函数C(q) = aq^2 + bq + c,我们可以通过求导数的方法找到最小成本点。首先对成本函数求一阶导数,然后令导数等于零解出q,这个q就是使得成本最小的产量。最后,将q代入原成本函数得到最小成本。
设生产某种产品q个单位时的成本函数为:C ( q )=100+0.25q^2+6q\, ( (万元) ),求当产量q为多少时,平均成本最小?请摆出式子并说出理由. ... −C(x)Δx 表示该产品量为x时的边际成本,即边际成本为成本函数关于产量的导数。根据这个定义,设某产品量为q(单位:t ...