Which of the industries listed below relies the most on patent protection to recoup its investments on research and development?

Adam Smith, the father of modern economics wrote in his book, An Inquiry into the Nature and Causes of the Wealth of Nations, "It is not from the benevolence of the butcher, the brewer, or the baker, that we expect our dinner but from their regard to

their own interest." Explain what he meant by that statement and how such behavior promotes the wealth of a nation.

Which statement about oligopoly is false?

A. Monopolistic firms recognize their interdependence B. Prices in oligopoly are predicted to fluctuate widely and frequently C. A few firms play an important role in the sale of a product D. One firm's behavior is a function of what its rivals do