If, after hiring the 6th worker, a firm's output falls, then the marginal product of the 6th worker is negative

Discuss the correct and incorrect economic analysis in the following statement

"The United Auto Workers Union has successfully negotiated a 9 percent increase in wages for its workers. This increase in the wage rate causes an increase in demand for automobiles, since many consumers now have greater incomes, and also a decrease in the supply of automobiles because the cost of production has increased. These effects cancel each other out resulting in no change in equilibrium price and quantity in the automobile market."

Will a large quantity of bonds held in the Social Security Trust Fund make it easier to deal with the retirement of the baby boomers?

a. Yes; the federal government will be able to redeem these bonds in the future without raising taxes or increasing its borrowing. b. Yes; the interest on these bonds will provide the federal government with a stream of net revenue in the future. c. Yes, but only if the federal government holds these bonds until they mature. d. No; the federal government cannot redeem the bonds without raising revenues for their redemption from other sources.