Cutting Edge Pharmaceuticals Pty Ltd (a monopoly firm) has the following demand (average revenue) function: AR = 65 – Q The marginal cost of production is constant and equal to $5. What is the equilibrium monopoly price (Pm) set by the firm (1/2 mark) and what will be the monopoly profit earned? (1/2 mark)
Question
Cutting Edge Pharmaceuticals Pty Ltd (a monopoly firm) has the following demand (average revenue) function: AR = 65 – Q The marginal cost of production is constant and equal to $5.
What is the equilibrium monopoly price (Pm) set by the firm (1/2 mark) and what will be the monopoly profit earned? (1/2 mark)
Solution
To find the equilibrium monopoly price (Pm), we first need to find the quantity where Marginal Revenue (MR) equals Marginal Cost (MC).
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First, we need to find the MR. Since the Average Revenue (AR) is given by AR = 65 - Q, we know that this is also the demand function (P = 65 - Q), because in a monopoly, AR = Price (P).
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The MR in a linear demand curve like this one is given by MR = 65 - 2Q.
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We set MR = MC to find the equilibrium quantity. So, 65 - 2Q = 5. Solving for Q gives Q = 30.
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Substituting Q = 30 into the demand function gives P = 65 - 30 = 35.
To find the monopoly profit:
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We need to find total revenue (TR) and total cost (TC).
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TR is given by PQ, so TR = 3530 = $1050.
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Since MC is constant at 150.
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Therefore, the monopoly profit is TR - TC = 150 = $900.
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