In the above table, saving equals zero when real disposable income equals

The McCallum management principles advocate the use of

a. time-motion study to determine the most productive way to perform job-tasks. b. employee stock-purchase programs. c. internal accounting systems and performance evaluations. d. leveraged buy-outs to increase the firm's control of an industry.

Suppose a firm has an output of 10,000 cans and a total fixed cost of $2,000 . At an output of 5,000 the difference between the total cost and the total variable cost is:

a. b and c. b. $0.40. c. the average fixed cost. d. $2,000. e. $0.20.