21. An econometric model requires

A. a computer with large auxiliary storage capacity
B. a data base of economic data
C. a model base of quantitative analysis programs
D. All of the above
E. None of the above

22. Linear programming identifies

A. the optimum quantities of the variables
B. the maximum profit or minimum cost that can be expected
C. both (a) and (b)
D. neither (a) nor (b)
E. None of the above

23. Frederic W. Taylor contributed the idea(s) of

A. the exception principle
B. management functions
C. both (a) and (b)
D. neither (a) nor (b)
E. None of the above

24. Benefits from a computerised MIS include:

A. higher returns on short-term investments
B. less frequent and smaller short-term loans
C. lower rates of interest
D. All of the above
E. None of the above

25. PCM stands for _____

A. plug-compatible manufacturer
B. personal computer media
C. PC-manufacturer
D. PC-modem
E. None of the above