For a given quantity, the total profit of a perfectly competitive firm is equal to the vertical distance between the firm's total revenue curve and its total cost curve

In the electric power industry, residential customers have relatively ____ demand for electricity compared with large industrial users. But contrary to price discrimination, large industrial users generally are charged ____ rates

a. similar, similar b. elastic, lower c. elastic, higher d. inelastic, lower e. inelastic, higher

Using the expenditure approach, "gross private domestic investment" is the sum of:

a. newly produced capital goods. b. fixed investment. c. changes in business inventories. d. all of these.