firms usually face downward-sloping demand curves.
supply curves slope upward.
price is usually set equal to marginal cost by firms.
there are reasonable substitutes for most goods.
26. The key element in preserving a monopoly is
government subsidy of critical enterprises.
keeping potential rivals out of the market.
guaranteeing availability of substitute products.
increased advertising expenditure.
27. At a given output level, a monopolist earns a profit only if the
slope of its TR curve exceeds the slope of his TC curve.
height of its MR curve exceeds the height of his MC curve.
height of its demand curve exceeds the height of his MR curve.
height of its demand curve exceeds the height of his ATC curve.
28. At his current level of output, a monopolist has an MR of $10, an MC of $6, and an economic profit of
zero. If the market demand curve is downward sloping and his marginal cost curve upward sloping, the
monopolist
is producing his profit-maximizing level of output.
could increase his profit by increasing his output.
could increase his profit by increasing his price.
should exit the market if he has positive fixed cost.
29. Which of the following accurately describes a major difference between a monopolist and firms in
competitive price-searcher markets?
A monopolist will maximize profit, while firms in competitive price-searcher markets will
maximize sales.
A monopolist may be able to earn long-run economic profit, but firms in competitive
price-searcher markets will not be able to do so.
A monopolist will charge a price that is greater than its marginal cost, but competitive
price searchers will charge prices that are just equal to their marginal cost.
A monopolist will charge a price that is just equal to its marginal cost, but competitive
price searchers will charge prices that are greater than their marginal cost.