Research and development is most likely to have an impact on the _____

Your friend is preparing for this exam and in your practice session makes the following statement: "Instead of attending microeconomics class for two hours, Kiki could have played tennis or watched a movie

Therefore, the opportunity cost of attending class is the tennis and the movie she had to give u

Examples of comparative advantage often begin with two countries that each produce the same two goods. Each country is then shown to have a comparative advantage in producing the good it can produce at a lower opportunity cost, and specializes in the

production of the good for which it has a comparative advantage. How do these examples prove that both nations are made better off as a result of trade than they would be without trade? What will be an ideal response?