(b) Compute the marginal products of each input. (c) Does this production function exhibit constant returns to scale? Using the marginal products you have computed in the previous part, explain your answer in no more than 25 words. (d) Suppose that Hobbies Co wants to produce q trains when the price of paint is $72/mL and the price of wood is $18/g. Show that the minimum cost of such an undertaking is c(q) = 2q² +6q+72. (e) Suppose that the market price is p, and Hobbies Co will produce q units of trains. Using the cost function you found in the previous part, find the supply function of Hobbies Co. Express it as a function of price. (f) Suppose that there are 60 identical firms like HobbiesCo who act as price-takers and the market demand for model trains is given by QD = 910 - 5p. Show that the short-run market equilibrium price in this industry is p* = 50. (g) In the long run, given no shocks to market demand, do you expect to see the number of firms in this industry increase, decrease or stay the same? Justify your answer with working. (h) Assuming no shocks to market demand, what is the largest whole number of firms that this market can sustain in the long run equilibrium? (i) Suppose that we are in the long-run equilibrium given in the previous part. Now, 20 of the firms successfully lobby the government for a subsidy of $5 per model train sold. How many firms will there now be in the long run equilibrium?
(b) Compute the marginal products of each input. (c) Does this production function exhibit constant returns to scale? Using the marginal products you have computed in the previous part, explain your answer in no more than 25 words. (d) Suppose that Hobbies Co wants to produce q trains when the price of paint is $72/mL and the price of wood is $18/g. Show that the minimum cost of such an undertaking is c(q) = 2q² +6q+72. (e) Suppose that the market price is p, and Hobbies Co will produce q units of trains. Using the cost function you found in the previous part, find the supply function of Hobbies Co. Express it as a function of price. (f) Suppose that there are 60 identical firms like HobbiesCo who act as price-takers and the market demand for model trains is given by QD = 910 - 5p. Show that the short-run market equilibrium price in this industry is p* = 50. (g) In the long run, given no shocks to market demand, do you expect to see the number of firms in this industry increase, decrease or stay the same? Justify your answer with working. (h) Assuming no shocks to market demand, what is the largest whole number of firms that this market can sustain in the long run equilibrium? (i) Suppose that we are in the long-run equilibrium given in the previous part. Now, 20 of the firms successfully lobby the government for a subsidy of $5 per model train sold. How many firms will there now be in the long run equilibrium?
Chapter9: Production Functions
Section: Chapter Questions
Problem 9.10P
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