Which of the following statements is correct for a monopolist? (i) The firm maximizes profits by equating marginal revenue with marginal cost. (ii) The firm maximizes profits by equating price with marginal cost. (iii) Demand equals marginal revenue. (iv) Average revenue equals price
a. (i), (iii), and (iv) only
b. (i) and (iv) only
c. (i), (ii), and (iv) only
d. (i), (ii), (iii), and (iv)
b
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If disposable income falls, consumption expenditure falls ________
A) by an amount that depends on the real interest rate B) so that planned expenditure remains constant C) by an amount smaller than the decrease in disposable income D) all of the above E) none of the above
What is meant by saying that economics is an empirical science?
A) Economic theories will be tested by seeing how well they correspond to people's declared preferences. B) Economic theories cannot be tested because there is no means of measuring economic variables with adequate precision. C) Economic theories cannot be tested because economic variables change too quickly. D) Economic theories will be tested by seeing how well they correspond to real-world phenomena.