If national income is $400 billion, consumption spending is $380 billion, and MPC is 0.5, what is the level of saving?

Refer to Figure 5-6. What is the economically efficient output level?

A) Q1 + Q2 B) Q2 C) Q2 - Q1 D) Q1

Money market deposit accounts are included in

A) only M1. B) only M2. C) M1 and M2. D) neither M1 nor M2.