About 540 million passengers took plane trips in the United States in 2012 . If the average price of time for air travelers is $25 per hour, the opportunity cost of an hour of delay in airports is _____ per year

Which of the following does not represent a form of debt finance?

A) bonds B) loans C) stock D) all of the above

Which of the following statements is not correct?

a. Welfare programs may encourage illegitimate births. b. The decline in welfare benefits since the 1970s has been associated with a decline in the percentage of children living with a single parent. c. Welfare programs may reduce incentives for people to work. d. A negative income tax program uses tax revenues collected from high-income families to provide cash subsidies to low-income families.