Which of the following is least likely to contribute to the volatility of investment spending?

One way to restructure Social Security to meet its future obligations would be to _____

a. lower the retirement age b. reduce Social Security benefits c. increase benefits only on the poor d. eliminating pay-as-you-go

A firm sells 1000 units per week. It charges $15 per unit, the average variable costs are $10, and the average costs are $25 . In the long run, the firm should

a. Shut-down as the firm is making a loss of $10,000 per week b. Shut-down as price is lower than average cost c. Continue operating as the firm is covering all the variable costs and some of the fixed costs d. Shut-down because it is cost effective to pay off the remaining fixed costs