Draw graph of coal industry and representative coal mine


Assume that the coal industry is perfectly competitive.

a. Draw a graph of the coal industry and a graph for a representative coal mine. Show an equilibrium price and quantity on each graph such that zero economic profit is initially earned.

b. Suppose that a decrease in the price of natural gas (a substitute for coal) occurs. Illustrate on each graph what happens to the coal market and representative coal mine in the short run.

c. If the price of natural gas remains low in the long-run, what will happen to the price of coal over time? Show the effect on your graphs and explain.

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Microeconomics: Draw graph of coal industry and representative coal mine
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