If required reserves are $150 and deposits are $1000, what is the required reserve ratio?

All monopolies exist because of:

a. firms' desire to maximize profits. b. failure of antitrust laws. c. barriers to entry. d. natural selection.

Individuals who are more risk averse

a. buy less insurance b. buy more insurance c. are not more or less inclined to buy insurance d. are philosophically opposed to insurance