The idea that the demand for money is a function of both income and wealth is part of whose theory?

Consider a world of two countries producing only wheat and cloth. In one hour, residents of Country A can produce 1 unit of wheat and 0.5 unit of cloth, whereas residents of Country B can produce 0.3 unit of wheat and 0.4 unit of cloth

Country A should export A) wheat and cloth; country B should not export anything. B) wheat and country B should export cloth. C) nothing and country B should export both wheat and cloth. D) cloth and country B should export wheat.

The cost disease of personal services causes

a. the cost of health care to rise faster than the economy's rate of inflation. b. legislators to blame declining standards of quality at public hospitals on greedy doctors or administrators. c. legislators to propose price controls on insurance. d. All of the above are correct.