3. Economies of scale, Ch.?. Evaluate the relative importance of economies of scale and comparative advantage in causing the following: a. Most of the world's aluminum is smelted in Norway or Canada. 1). Half of the world's large jet aircraft are assembled in Seattle. 0. Most semiconductors are manufactured in either the United States or Japan. d. Most Scotch whiskey comes from Scotland. e. Much of the world's best wine comes from France