Which component of aggregate demand is most impacted by the foreign trade effect?

"Monopolists do not worry about efficient production and cost saving since they can just pass along any increase in costs to their consumers." Is this statement true? Explain your answer

In the United States, price-fixing cartels are

a. ubiquitous b. nonexistent c. generally illegal d. discouraged the Department of Labor e. dominant in small industries with large numbers of firms