All central banks are controlled by government

The "double coincidence of wants" is

A) what is needed to use money. B) eliminated with the use of money. C) money's role as a unit of account. D) how value is stored when we transact with money. E) eliminated when we barter instead of using money.

Refer to the above figure. The firm is operating using MRP0. An increase in productivity has occurred. The relevant curve for the firm after the increase in productivity

A) is MRP0. B) is MRP1. C) is MRP2. D) could be MRP1 or MRP2 depending upon whether the firm was earning a positive profit.