Suppose a market has the demand function Qd=20-0.5P. Using the midpoint method, what is the price elasticity of demand between $30 and $40?
7
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A positive externality causes
A) the marginal social benefit to be less than the marginal private cost of the last unit produced. B) the marginal private benefit to exceed the marginal social cost of the last unit produced. C) the marginal social benefit to exceed the marginal private cost of the last unit produced. D) the marginal social benefit to be equal to the marginal private cost of the last unit produced.
A bird flu epidemic causes many people to flee the country, but does not affect labor demand significantly because almost all the goods produced within the country are exported. What happens to current employment and the real wage rate?
A) Both employment and the real wage rate would increase. B) Both employment and the real wage rate would decrease. C) Employment would increase and the real wage would decrease. D) Employment would decrease and the real wage would increase.
A monopolist sells to two consumer groups, students and non-students
Demand for students: Q = 500 - 1/2P Demand for non-students: Q = 750 - 2P MC = 20 Find the profit-maximizing price/quantity combination in each market if the groups can be separated.
Which of the following is TRUE?
A) APC + MPS = 1 B) MPC + MPS = 1 C) 1 + APC = APS D) APC - APS = 1