In the 19th century John Deere took out a patent on a newly designed plow that incorporated steel to make plowing faster. Many farmers bought plows from his company and he made millions. This example shows that patents turn an idea into a

Which of the following statements is true about monopolistically competitive firms?

A) Like perfectly competitive firms, monopolistically competitive firms are not able to raise prices without losing all of their customers because they face competition from firms selling similar products. B) Unlike perfectly competitive firms, monopolistically competitive face perfectly inelastic demand curves. C) Like perfectly competitive firms, monopolistically competitive firms maximize their profits by setting price equal to marginal cost. D) Unlike perfectly competitive firms, monopolistically competitive firms are able to raise their prices without losing all of their customers.

An increase in the rate of depreciation is associated with ________

A) a decrease in the rate of productivity B) a decrease in gross investment C) a decrease in net investment D) an increase in net investment