A firm in a perfectly competitive industry has fixed costs of FC = 3 and average variable costs of AVC = 2 + 8q. a) What are the firm’s variable costs (VC)?  b) What is the firm’s total cost function?  c) If the price is $18, how much does the firm supply?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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A firm in a perfectly competitive industry has fixed costs of FC = 3 and average variable costs of AVC = 2 + 8q.

a) What are the firm’s variable costs (VC)? 

b) What is the firm’s total cost function? 

c) If the price is $18, how much does the firm supply? 

d) Does the firm continue to supply this quantity in the short run? 

e) Suppose there exists a standard market demand function from consumers (downward sloping). Please provide logical discussion about how the market achieves short-run equilibrium. 

f) Suppose the market demand was given by Qd(p) = 50 – p. Suppose further that a sales tax of £1 per unit is imposed in the market. Calculate the deadweight loss resulting from this tax. Assume the market consists of 100 firms with identical cost functions. 

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