求解决中级微观经济学的两道题！！！求详细点的步骤 10
1.AfirminacompetitiveindustryhasatotalcostfunctionofTC=0.2Q2−5Q+30a)Whatisitsco...
1. A firm in a competitive industry has a total cost function of
TC = 0.2Q
2 − 5Q + 30
a) What is its corresponding marginal cost curve?（求正确的MPC)
b) If the firm faces a price of $6 per unit, what quantity should it sell? (当价格是6刀每单位，求需要卖出的数量）
c) What profit does the firm make at this price?（价格是这个的时候利润多少）
d) Should the firm shut down? （这个公司应该关闭么）
2. Suppose a representative firm in a perfectly competitive, constant cost industry has
a cost function
TC = 4Q
2 + 100Q + 100
a) What is the long-run equilibrium price for this industry?（求长期均衡价格）
b) If market demand is given by the function Q = 1000 − P, where P denotes price,
how many firms will operate in this long-run equilibrium?（给出需求方程，P代表价格，求在长期均衡下有多少公司经营）
c) Suppose the government grants a lump-sum subsidy to each firm that
manufactures the product. If this lump-sum subsidy equals $36/firm, what
would be the new long-run equilibrium price for the industry?（假设政府对每个公司制造的产品给出一次性补贴，如果补贴是36刀每个公司，求新的长期均衡价格） 展开
TC = 0.2Q
2 − 5Q + 30
a) What is its corresponding marginal cost curve?（求正确的MPC)
b) If the firm faces a price of $6 per unit, what quantity should it sell? (当价格是6刀每单位，求需要卖出的数量）
c) What profit does the firm make at this price?（价格是这个的时候利润多少）
d) Should the firm shut down? （这个公司应该关闭么）
2. Suppose a representative firm in a perfectly competitive, constant cost industry has
a cost function
TC = 4Q
2 + 100Q + 100
a) What is the long-run equilibrium price for this industry?（求长期均衡价格）
b) If market demand is given by the function Q = 1000 − P, where P denotes price,
how many firms will operate in this long-run equilibrium?（给出需求方程，P代表价格，求在长期均衡下有多少公司经营）
c) Suppose the government grants a lump-sum subsidy to each firm that
manufactures the product. If this lump-sum subsidy equals $36/firm, what
would be the new long-run equilibrium price for the industry?（假设政府对每个公司制造的产品给出一次性补贴，如果补贴是36刀每个公司，求新的长期均衡价格） 展开
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