Income received but not earned is

A firm in a perfectly competitive industry will maximize profits by adjusting

A) average total cost until it equals price. B) price until marginal revenue equals marginal cost. C) output until average revenue equals short-run average total cost. D) output until marginal cost equals marginal revenue. E) price until average revenue equals average total cost.

The aggregate demand curve

a. would be little affected by a technological advancement b. shifts to the right when spending decreases c. shifts to the left when there is a decrease in taxes d. can shift independently of the aggregate supply curve e. shifts to the right when there is an expectation that future income will fall