National saving is equal to Y - T - C

A method of measuring the money supply by looking at money as a temporary store of value is the

A) transactions approach. B) capital control. C) liquidity approach. D) fiduciary monetary system.

The figure above illustrates the marginal private cost and the marginal social cost to the city of Seattle for each rock concert that is offered. Suppose the marginal private cost of the 5th concert is $10,000. Then, for the 5th concert, the

A) marginal external cost equals $30,000. B) marginal social cost equals $30,000. C) marginal external cost equals the marginal private cost. D) marginal external cost equals $40,000. E) marginal external cost equals $10,000.