Question

A firm has the following long-run total cost function: LTC = 3500Q - 450Q2 + 15Q3...

A firm has the following long-run total cost function:

LTC = 3500Q - 450Q2 + 15Q3

a.  Write the equation for the long-run average cost.

b.  Determine the minimum value of LAC.  

c. If the firm is a price taker, determine the minimum long-run price it must receive so that it will not exit the industry.  

d.  Over what range of output will the firm have economies of scale?  

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