10a.- Does the monopolist have to lower its price if it wants to sell more products, or can it sell any amount at any price it decides? 10b.- What happens to the marginal cost as the monopolist produces more output? 10c.- How does the unregulated monopolist decide how many units to produce in order to maximize profits? 10d.- Give examples of barriers of entry. 10e.- Compared to perfect competition, does the monopolist over-produce or under-produce?