Which of the following is an example of a public good?

John's utility of wealth curve is shown in the above figure. He currently has wealth of $20,000. If there is a 10 percent chance of losing all his wealth, what is the value of insurance against this loss?

A) $0 B) $2,000 C) $3,000 D) $17,000

According to Keynes,

A) the Great Depression was caused by ill-considered expansionary fiscal policy. B) balancing the budget in the midst of a depression would be a serious mistake. C) inflation is always and everywhere a monetary phenomenon. D) the Phillips curve is stable. E) none of the above