Which of the following is not an example of a country's infrastructure?

The desired reserve ratio is 10 percent. Joe deposits $1,000 in Bank A. Bank A keeps its minimum desired reserves and lends the excess to Fred. Fred spends his loan at J.C. Penney. J.C. Penney deposits the check it receives from Fred in Bank B

Bank B keeps its minimum desired reserves and lends the excess to Mary. How much can Bank B lend to Mary? A) $900 B) $90 C) $810 D) $100 E) $1,000

Properly enforced property rights will usually cause

a. lower levels of investment spending. b. lower levels of real interest rates. c. higher levels of investment spending. d. higher levels of real interest rates.