Suppose that each of the following is true: (1) The laptop computer industry
is perfectly competitive, and the firms that assemble laptops do not also make
the displays or screens; (2) the laptop display industry is also perfectly
competitive; and (3) because the demand for laptop displays is currently
relatively small, firms in the laptop display industry have not been able to
take advantage of all the economies of scale in laptop display production. Use
a graph of the laptop computer market to illustrate the long-run effects on
equilibrium price and quantity in the laptop computer market of a substantial
and sustained increase in the demand for laptop computers. Use another graph
to show the effect on the cost curves of a typical firm in the laptop computer
industry. Briefly explain your graphs. Do your graphs indicate that the laptop
computer industry is a constant-cost industry, an increasing-cost industry, or
a decreasing-cost industry?