Earliest records of management (who does what) are found on the walls of cave dwellings in:

Following the principle of comparative advantage, specialization:

a. permits greater levels of total production than would be attained without it. b. increases the dependency of countries on trade. c. both of the above. d. neither of the above.

Who among the following is a discouraged worker?

a. Brian, who has delayed joining his new office by a month b. Regina, who has given up her job search after several failed attempts to find one c. Daniel, who has a job as a ski instructor only during winter d. Roger, who is currently unemployed, enjoys the unemployment benefits and is not too eager to search for a new job