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A monopolist has set her level of output to maximize profit. The firm's marginal revenue is $30, and the price elasticity of demand is -2.0. The firm's profit .. . maximizing price is approximately: A. $60 B. $20 C. $40 AA D. $0 If the marginal revenue curve a monopoly faces is MR= 100 - 2Q, and MC is constant at 8, then profit maximization is achieved when the monopoly sets price to A. $54 B. $8 C. $58 D. $16 The difference between the marginal expenditure and the wage is greater when the supply curve of labor is A. The difference does not depend on any elasticity. B. less elastic at the monopsony optimum. C. more elastic than the demand curve. D. more elastic at the monopsony optimum.