Which of the following is not a type of resistance

An example of an activity that generates an external cost is

A) dumping soapsuds into a trout stream. B) national defense services. C) planting flowers along an interstate highway. D) eating an apple.

Which of the following supports the contention that monopolistic competitors have a strong incentive to engage in R&D?

A. Entry to monopolistic competitive industries is relatively easy and thus profit from innovation is quickly competed away. B. Most monopolistic competitive industries are decreasing-cost industries. C. The desire to differentiate products from competitors may motivate monopolistic competitors to engage in R&D. D. Monopolistic competitors have large retained earnings that are available to finance R&D.